Digital SAT Flashcards: Math, Grammar & Words in Context

Kartu dalam dek ini

1. Kartu 1

   Pertanyaan

   Central idea of a passage?

   Jawaban

   The passage's main claim or controlling point. It should cover the whole passage, not one striking detail.

2. Kartu 2

   Pertanyaan

   The shade trees mitigated the midday heat. Meaning of “mitigated”?

   Jawaban

   Reduced. The trees made the heat less severe.

3. Kartu 3

   Pertanyaan

   The first plan was affordable. However, it took twice as long. What relationship does “However” signal?

   Jawaban

   Contrast. The second statement differs from or qualifies the first.

4. Kartu 4

   Pertanyaan

   Three standard joins for two independent clauses?

   Jawaban

   A period, a semicolon, or a comma plus a coordinating conjunction. Each side must be a complete sentence.

5. Kartu 5

   Pertanyaan

   Best supporting detail?

   Jawaban

   The detail that most directly proves the claim. Relevance matters more than how vivid or surprising it is.

6. Kartu 6

   Pertanyaan

   A second archive corroborated the diary's date. Meaning of “corroborated”?

   Jawaban

   Confirmed with supporting evidence.

7. Kartu 7

   Pertanyaan

   Every member of set A is even. Nine is odd; therefore, nine is not in set A. What relationship does “therefore” signal?

   Jawaban

   Conclusion from a reason. The final statement follows logically from the stated premises.

8. Kartu 8

   Pertanyaan

   Introductory dependent clause before a main clause?

   Jawaban

   Use a comma after the dependent clause. Example: “Although rain fell, the match continued.”

9. Kartu 9

   Pertanyaan

   Valid inference?

   Jawaban

   A conclusion that must follow, or that most reasonably follows, from the stated evidence. Avoid assumptions the text never supports.

10. Kartu 10

    Pertanyaan

    The team called its result tentative until replication. Meaning of “tentative”?

    Jawaban

    Provisional or not yet certain.

11. Kartu 11

    Pertanyaan

    Several materials block sound. For example, thick felt absorbs echoes. What relationship does “For example” signal?

    Jawaban

    Illustration. The second statement gives a specific case of the broader point.

12. Kartu 12

    Pertanyaan

    Singular subject with an intervening prepositional phrase?

    Jawaban

    Use a singular verb. Example: “The box of samples is sealed.” The phrase “of samples” does not change the subject.

13. Kartu 13

    Pertanyaan

    Strongest textual evidence?

    Jawaban

    The quotation or detail that most directly supports the target claim, with the fewest extra assumptions.

14. Kartu 14

    Pertanyaan

    The error had a negligible effect on the total. Meaning of “negligible”?

    Jawaban

    So small that it is not important.

15. Kartu 15

    Pertanyaan

    The first route avoids steep hills. Similarly, the second stays nearly level. What relationship does “Similarly” signal?

    Jawaban

    Similarity. The second statement matches the first in a relevant way.

16. Kartu 16

    Pertanyaan

    Opening modifier placement?

    Jawaban

    Place the noun being modified immediately after the opening phrase. Example: “Walking home, Lena noticed the mural.”

17. Kartu 17

    Pertanyaan

    Quantitative evidence for a claim?

    Jawaban

    Use the value, comparison, or trend that directly tests the claim, including the correct units and baseline.

18. Kartu 18

    Pertanyaan

    The lab used a conventional method before testing a new one. Meaning of “conventional”?

    Jawaban

    Traditional or commonly accepted.

19. Kartu 19

    Pertanyaan

    Mira checked the figures. Meanwhile, Omar revised the caption. What relationship does “Meanwhile” signal?

    Jawaban

    Simultaneous events. The second event happens at the same time as the first.

20. Kartu 20

    Pertanyaan

    Singular possessive noun?

    Jawaban

    Usually add apostrophe + s. Example: “the scientist's notebook.”

21. Kartu 21

    Pertanyaan

    Trend in a table or graph?

    Jawaban

    State what changes, in which direction, and across which interval. Do not turn a pattern into a cause without evidence.

22. Kartu 22

    Pertanyaan

    The essay offered a novel explanation for the pattern. Meaning of “novel”?

    Jawaban

    New or original in this context.

23. Kartu 23

    Pertanyaan

    The device was old. Nevertheless, it performed reliably. What relationship does “Nevertheless” signal?

    Jawaban

    Concession. The second statement remains true despite the limitation in the first.

24. Kartu 24

    Pertanyaan

    Parallel items in a series?

    Jawaban

    Use the same grammatical form for each item. Example: “to collect, analyze, and report data.”

25. Kartu 25

    Pertanyaan

    Claim stronger than the evidence?

    Jawaban

    Qualify the claim. Limited evidence can support “may” or “suggests,” not an absolute conclusion.

26. Kartu 26

    Pertanyaan

    Her account is plausible because it matches the records. Meaning of “plausible”?

    Jawaban

    Reasonable or believable.

27. Kartu 27

    Pertanyaan

    The plan cuts costs. Moreover, it shortens delivery time. What relationship does “Moreover” signal?

    Jawaban

    Addition. The second statement adds a related supporting point.

28. Kartu 28

    Pertanyaan

    Colon before an explanation or list?

    Jawaban

    Use it only after a complete independent clause. Example: “The kit needs three items: tape, gloves, and labels.”

29. Kartu 29

    Pertanyaan

    Claim versus evidence?

    Jawaban

    A claim is the point being argued; evidence is the information used to support it.

30. Kartu 30

    Pertanyaan

    The memo's ambiguous wording allowed two readings. Meaning of “ambiguous”?

    Jawaban

    Open to more than one interpretation.

31. Kartu 31

    Pertanyaan

    The team didn't replace the sensor. Instead, it recalibrated the existing one. What relationship does “Instead” signal?

    Jawaban

    Replacement. The second statement substitutes one action for another.

32. Kartu 32

    Pertanyaan

    Count nouns versus mass nouns?

    Jawaban

    Use “fewer” with countable items and “less” with amounts. Example: fewer errors, less noise.

33. Kartu 33

    Pertanyaan

    Effect of a counterexample?

    Jawaban

    It weakens a universal claim by showing at least one case where the claim fails.

34. Kartu 34

    Pertanyaan

    Rainfall was sporadic: brief showers interrupted long dry periods. Meaning of “sporadic”?

    Jawaban

    Irregular and occasional.

35. Kartu 35

    Pertanyaan

    The seedlings grew indoors. Subsequently, workers moved them outside. What relationship does “Subsequently” signal?

    Jawaban

    Later step in a sequence. The second event occurs after the first.

36. Kartu 36

    Pertanyaan

    Essential clause punctuation?

    Jawaban

    Do not surround an essential clause with commas. It identifies which person or thing the sentence means.

37. Kartu 37

    Pertanyaan

    Correlation alone proves causation?

    Jawaban

    No. A relationship between variables does not by itself show that one caused the other.

38. Kartu 38

    Pertanyaan

    Subsequent trials produced the same result. Meaning of “subsequent”?

    Jawaban

    Coming later in time.

39. Kartu 39

    Pertanyaan

    The coating is hydrophobic. In other words, it repels water. What relationship does “In other words” signal?

    Jawaban

    Restatement for clarity. The second statement rephrases the first.

40. Kartu 40

    Pertanyaan

    Verb tense across a paragraph?

    Jawaban

    Keep the time frame consistent unless the timing actually changes.

41. Kartu 41

    Pertanyaan

    Missing information in a data claim?

    Jawaban

    Look for the baseline, sample size, units, comparison group, or time interval needed to judge the claim.

42. Kartu 42

    Pertanyaan

    The coating helps the fabric retain heat. Meaning of “retain”?

    Jawaban

    Keep or continue to hold.

43. Kartu 43

    Pertanyaan

    The repair requires specialized tools. Specifically, it needs a torque wrench. What relationship does “Specifically” signal?

    Jawaban

    General-to-specific detail. The second statement narrows the broad first statement.

44. Kartu 44

    Pertanyaan

    Coordinate adjectives?

    Jawaban

    Separate them with a comma when their order can switch and “and” can fit between them. Example: “a clear, concise note.”

45. Kartu 45

    Pertanyaan

    Two sources on the same event?

    Jawaban

    Compare the exact claims, evidence, scope, and perspective. Shared topic does not guarantee agreement.

46. Kartu 46

    Pertanyaan

    The survey was designed to elicit candid responses. Meaning of “elicit”?

    Jawaban

    Draw out or bring forth.

47. Kartu 47

    Pertanyaan

    Heavy rain loosened the soil. Consequently, the trail closed. What relationship does “Consequently” signal?

    Jawaban

    Cause and effect. The second statement is an outcome of the first.

48. Kartu 48

    Pertanyaan

    Sentence fragment?

    Jawaban

    A group of words missing an independent clause. Attach it to a complete sentence or supply the missing subject and verb.

49. Kartu 49

    Pertanyaan

    Inference from a narrow sample?

    Jawaban

    Limit the conclusion to the population the sample can represent. Do not generalize beyond the evidence.

50. Kartu 50

    Pertanyaan

    Cost was the main constraint on the project. Meaning of “constraint”?

    Jawaban

    A limit or restriction.

51. Kartu 51

    Pertanyaan

    Early results conflicted. Ultimately, the team accepted the model. What relationship does “Ultimately” signal?

    Jawaban

    Overall conclusion. The second statement gives the final judgment after earlier considerations.

52. Kartu 52

    Pertanyaan

    Conjunctive adverb between independent clauses?

    Jawaban

    Use a semicolon before it and a comma after it. Example: “The route was longer; however, it was safer.”

53. Kartu 53

    Pertanyaan

    Most accurate summary?

    Jawaban

    State the central idea and its essential support without adding opinions or minor details.

54. Kartu 54

    Pertanyaan

    The review was comprehensive, covering every recorded case. Meaning of “comprehensive”?

    Jawaban

    Complete and wide-ranging.

55. Kartu 55

    Pertanyaan

    The method is efficient. Indeed, it cuts processing time in half. What relationship does “Indeed” signal?

    Jawaban

    Emphasis and confirmation. The second statement reinforces the first with a stronger detail.

56. Kartu 56

    Pertanyaan

    Who versus whom?

    Jawaban

    Use “who” as a subject and “whom” as an object. Test with he/him: “whom” matches “him.”

57. Kartu 57

    Pertanyaan

    Evidence that best resolves a disagreement?

    Jawaban

    Choose evidence that tests the specific point on which the sources differ, not a fact both already accept.

58. Kartu 58

    Pertanyaan

    The two materials have distinct properties. Meaning of “distinct”?

    Jawaban

    Clearly different or separate.

59. Kartu 59

    Pertanyaan

    The forecast warned of rain. Still, the outdoor concert began on time. What relationship does “Still” signal?

    Jawaban

    Concession. The second statement remains true despite the obstacle in the first.

60. Kartu 60

    Pertanyaan

    Comma before an introduced direct quotation?

    Jawaban

    Use a comma after a speech tag. Example: “Mina wrote, ‘The sample is ready.’”

61. Kartu 61

    Pertanyaan

    The conclusion was qualified by two important exceptions. Meaning of “qualified”?

    Jawaban

    Limited or modified, rather than stated without conditions.

62. Kartu 62

    Pertanyaan

    Notes for a synthesis goal?

    Jawaban

    Use only facts that directly serve the stated goal. Relevant notes can be omitted if they do not help that purpose.

63. Kartu 63

    Pertanyaan

    Comma splice?

    Jawaban

    Two independent clauses joined only by a comma. Replace it with a period or semicolon, or add a coordinating conjunction.

64. Kartu 64

    Pertanyaan

    Comma between subject and verb?

    Jawaban

    Do not use one unless an interrupting phrase requires paired commas. “The results of the trial were clear” takes no comma after “trial.”

65. Kartu 65

    Pertanyaan

    The new sensor made the older model obsolete. Meaning of “obsolete”?

    Jawaban

    No longer useful or current because something newer replaced it.

66. Kartu 66

    Pertanyaan

    Source attribution in a synthesis?

    Jawaban

    Name the source when its identity, authority, or perspective matters to the rhetorical goal.

67. Kartu 67

    Pertanyaan

    Compound subject joined by “and”?

    Jawaban

    Use a plural verb in the usual case. Example: “The map and the notes are useful.”

68. Kartu 68

    Pertanyaan

    Dangling opening modifier?

    Jawaban

    It lacks the intended doer immediately after the modifier. Rewrite so the doer becomes the subject.

69. Kartu 69

    Pertanyaan

    Researchers derived the estimate from three measurements. Meaning of “derived”?

    Jawaban

    Obtained from a source or calculation.

70. Kartu 70

    Pertanyaan

    Chronological synthesis?

    Jawaban

    Order events by time and use dates or sequence words only when they help the reader follow the progression.

71. Kartu 71

    Pertanyaan

    Plural noun ending in s: possessive form?

    Jawaban

    Add an apostrophe after the existing s. Example: “the researchers' notes.”

72. Kartu 72

    Pertanyaan

    Logical comparison?

    Jawaban

    Compare like with like. Example: compare one city's rainfall with another city's rainfall, not with the city itself.

73. Kartu 73

    Pertanyaan

    The article advocates preserving the wetland. Meaning of “advocates”?

    Jawaban

    Publicly supports or argues for.

74. Kartu 74

    Pertanyaan

    Compare evidence from two studies?

    Jawaban

    State the shared measure first, then the relevant difference in result, method, or population.

75. Kartu 75

    Pertanyaan

    Colon after an incomplete lead-in?

    Jawaban

    Do not use one. A colon must follow a complete clause, so “The reasons include:” is incorrect.

76. Kartu 76

    Pertanyaan

    Number versus amount?

    Jawaban

    Use “number” for countable items and “amount” for uncountable quantities. Example: number of files, amount of water.

77. Kartu 77

    Pertanyaan

    Portable chargers are now ubiquitous on long trips. Meaning of “ubiquitous”?

    Jawaban

    Present or found almost everywhere.

78. Kartu 78

    Pertanyaan

    Synthesis that emphasizes a difference?

    Jawaban

    Use the same comparison point for both subjects, then state the contrast directly.

79. Kartu 79

    Pertanyaan

    Nonessential clause or phrase?

    Jawaban

    Set it off with paired commas. The sentence should keep its core identity and meaning when the phrase is removed.

80. Kartu 80

    Pertanyaan

    Earlier of two past actions?

    Jawaban

    Use past perfect when the sequence needs clarification. Example: “The team had left before the storm began.”

81. Kartu 81

    Pertanyaan

    Sentence 2 presents an exception to sentence 1. Its function?

    Jawaban

    It qualifies the first claim by limiting when or how broadly it applies.

82. Kartu 82

    Pertanyaan

    Rhetorical goal: define a term?

    Jawaban

    Give the term's relevant meaning before using details or examples that depend on it.

83. Kartu 83

    Pertanyaan

    Cumulative adjectives?

    Jawaban

    Do not separate them with a comma when each adjective builds on the next. Example: “three small glass jars.”

84. Kartu 84

    Pertanyaan

    Run-on sentence?

    Jawaban

    Independent clauses joined without valid punctuation or a conjunction. Add a period, semicolon, or comma plus coordinating conjunction.

85. Kartu 85

    Pertanyaan

    Sentence 2 gives a specific case after a general claim. Its function?

    Jawaban

    It illustrates the claim with an example.

86. Kartu 86

    Pertanyaan

    Introduce a quotation in a synthesis?

    Jawaban

    Give enough source and context to show why the quotation matters; do not leave it unattached.

87. Kartu 87

    Pertanyaan

    Relative pronoun for people?

    Jawaban

    Use “who” or “whom,” depending on case. Example: “the engineer who designed the bridge.”

88. Kartu 88

    Pertanyaan

    Integrated quotation punctuation?

    Jawaban

    Do not add a comma when the quotation completes the grammar of the sentence. Example: The report calls the result “unexpected.”

89. Kartu 89

    Pertanyaan

    Sentence 2 admits a limitation before defending the claim. Its function?

    Jawaban

    It makes a concession, showing that the writer recognizes a complication.

90. Kartu 90

    Pertanyaan

    Avoid redundancy in synthesis?

    Jawaban

    State each needed idea once. Prefer the version that preserves meaning with fewer repeated words.

91. Kartu 91

    Pertanyaan

    Semicolon between two independent clauses?

    Jawaban

    Use it without a coordinating conjunction when the ideas are closely related. Example: “The trial ended; the analysis began.”

92. Kartu 92

    Pertanyaan

    Comma in a compound predicate?

    Jawaban

    Usually omit it when one subject performs both actions. Example: “The team collected the samples and recorded the temperature.”

93. Kartu 93

    Pertanyaan

    Sentence 2 explains what a technical term means. Its function?

    Jawaban

    It defines or clarifies the term.

94. Kartu 94

    Pertanyaan

    Combine two related sentences?

    Jawaban

    Make the logical relationship explicit and remove repeated material without changing the facts.

95. Kartu 95

    Pertanyaan

    Either/or subject agreement?

    Jawaban

    Make the verb agree with the nearer subject. Example: “Either the notes or the map is missing.”

96. Kartu 96

    Pertanyaan

    Active versus passive voice?

    Jawaban

    Choose the voice that fits the focus. Active highlights the doer; passive can highlight the action or receiver.

97. Kartu 97

    Pertanyaan

    Sentence 2 describes the outcome of sentence 1. Its function?

    Jawaban

    It presents an effect or consequence.

98. Kartu 98

    Pertanyaan

    Formal academic register?

    Jawaban

    Use precise, neutral wording and avoid slang, vague intensifiers, and chatty asides unless the goal calls for them.

99. Kartu 99

    Pertanyaan

    Its or it's?

    Jawaban

    “Its” is possessive; “it's” means “it is” or “it has.”

100. Kartu 100

     Pertanyaan

     Adjective versus adverb?

     Jawaban

     An adjective modifies a noun; an adverb usually modifies a verb, adjective, or adverb. Example: a careful test; test carefully.

101. Kartu 101

     Pertanyaan

     A study reports a result without arguing for a policy. Author's purpose?

     Jawaban

     To inform or explain, not necessarily to persuade.

102. Kartu 102

     Pertanyaan

     Concise synthesis?

     Jawaban

     Keep every fact needed for the rhetorical goal and remove details that repeat or distract from it.

103. Kartu 103

     Pertanyaan

     Single dash for emphasis?

     Jawaban

     Use it after a complete thought to spotlight a final explanation or turn. Example: “One result stood out—the oldest sample.”

104. Kartu 104

     Pertanyaan

     Comma with direct address?

     Jawaban

     Set off the person being addressed. Example: “Rina, please check the units.”

105. Kartu 105

     Pertanyaan

     Why acknowledge a limitation?

     Jawaban

     To define the claim's boundary and show how the evidence should be interpreted.

106. Kartu 106

     Pertanyaan

     Quantitative comparison in a synthesis?

     Jawaban

     Name both values, the shared unit, and the direction or size of the difference.

107. Kartu 107

     Pertanyaan

     Each of the samples: verb number?

     Jawaban

     Singular. “Each of the samples was labeled.” The subject is “each.”

108. Kartu 108

     Pertanyaan

     Between versus among?

     Jawaban

     Use “between” for distinct individual relationships and “among” for a group without separate pairings.

109. Kartu 109

     Pertanyaan

     Rhetorical question in an argument?

     Jawaban

     It can frame the issue or prompt the reader to consider an implied answer; it is not evidence by itself.

110. Kartu 110

     Pertanyaan

     Claim before or after support?

     Jawaban

     Place it where the rhetorical goal is clearest: before evidence for a direct point, or after evidence for an evidence-led conclusion.

111. Kartu 111

     Pertanyaan

     Restrictive “that” versus nonrestrictive “which”?

     Jawaban

     Use “that” without commas for essential information; use “which” with commas for removable information.

112. Kartu 112

     Pertanyaan

     Present perfect use?

     Jawaban

     Use it for an action connected to the present or continuing to now. Example: “The team has tracked rainfall since May.”

113. Kartu 113

     Pertanyaan

     Two texts reach the same conclusion with different evidence. Relationship?

     Jawaban

     They agree in conclusion but support it through different evidence.

114. Kartu 114

     Pertanyaan

     Group related ideas in a synthesis?

     Jawaban

     Keep facts serving the same point together, then signal the move to a new point.

115. Kartu 115

     Pertanyaan

     Compound modifier before a noun?

     Jawaban

     Hyphenate it when needed for clarity. Example: “a well-designed study.”

116. Kartu 116

     Pertanyaan

     Affect or effect?

     Jawaban

     “Affect” is usually a verb meaning influence; “effect” is usually a noun meaning result.

117. Kartu 117

     Pertanyaan

     Two texts offer incompatible explanations. Relationship?

     Jawaban

     They disagree about the cause or interpretation, even if they share the same observations.

118. Kartu 118

     Pertanyaan

     Replace a vague pronoun in synthesis?

     Jawaban

     Use the precise noun when two or more possible antecedents could confuse the reader.

119. Kartu 119

     Pertanyaan

     Comma-separated list?

     Jawaban

     Use commas between three or more parallel items. A final serial comma can prevent ambiguity.

120. Kartu 120

     Pertanyaan

     Main clause before a dependent clause?

     Jawaban

     Usually no comma when the dependent clause is essential. Example: “The match continued although rain fell.”

121. Kartu 121

     Pertanyaan

     Two authors use the same evidence but different assumptions. Key difference?

     Jawaban

     Their perspectives or interpretive frameworks, not the underlying evidence.

122. Kartu 122

     Pertanyaan

     Independent clauses joined with a coordinating conjunction?

     Jawaban

     Place a comma before the conjunction. Example: “The sensor failed, so the team repeated the trial.”

123. Kartu 123

     Pertanyaan

     Introductory transition?

     Jawaban

     Follow it with a comma when it modifies the whole sentence. Example: “However, the second trial succeeded.”

124. Kartu 124

     Pertanyaan

     Pronoun–antecedent agreement?

     Jawaban

     Match number and make the reference clear. Singular “they” is standard when a person's gender is unknown or irrelevant.

125. Kartu 125

     Pertanyaan

     Paired em dashes?

     Jawaban

     Use them to set off an emphatic interruption. Both dashes are needed when the sentence continues after it.

126. Kartu 126

     Pertanyaan

     How does new evidence relate to an earlier claim?

     Jawaban

     It may support, weaken, qualify, or leave the claim unchanged. Match the evidence to the exact claim.

127. Kartu 127

     Pertanyaan

     Their, there, or they're?

     Jawaban

     “Their” is possessive, “there” refers to place or existence, and “they're” means “they are.”

128. Kartu 128

     Pertanyaan

     Good or well?

     Jawaban

     “Good” is usually an adjective; “well” is usually an adverb. A person can feel good and perform well.

129. Kartu 129

     Pertanyaan

     Appositive naming the same noun?

     Jawaban

     Set a nonessential appositive off with commas. Example: “Dr. Rao, the lead author, presented the findings.”

130. Kartu 130

     Pertanyaan

     Why use an analogy?

     Jawaban

     To clarify an unfamiliar idea through a relevant similarity to something more familiar.

131. Kartu 131

     Pertanyaan

     Than or then?

     Jawaban

     “Than” makes a comparison; “then” refers to time or consequence.

132. Kartu 132

     Pertanyaan

     Hypothetical contrary-to-fact “if” clause?

     Jawaban

     Use subjunctive “were.” Example: “If the sample were larger, the estimate would be steadier.”

133. Kartu 133

     Pertanyaan

     Plural noun with no possession?

     Jawaban

     Do not add an apostrophe. Write “three sensors,” not “three sensor's.”

134. Kartu 134

     Pertanyaan

     Neutral, evidence-led wording indicates what tone?

     Jawaban

     Objective. It emphasizes information rather than strong personal judgment.

135. Kartu 135

     Pertanyaan

     Complex list with internal commas?

     Jawaban

     Use semicolons between the main items. Example: “Lima, Peru; Accra, Ghana; and Hanoi, Vietnam.”

136. Kartu 136

     Pertanyaan

     Ambiguous pronoun?

     Jawaban

     A pronoun with more than one plausible antecedent. Replace it with the intended noun.

137. Kartu 137

     Pertanyaan

     Parentheses around nonessential information?

     Jawaban

     Use them for an aside that is less central than the main sentence. The sentence must remain grammatical without it.

138. Kartu 138

     Pertanyaan

     Repeated doubt about the evidence indicates what tone?

     Jawaban

     Skeptical. The writer questions whether a claim is adequately supported.

139. Kartu 139

     Pertanyaan

     Superlative comparison?

     Jawaban

     Use it for one member against a group of three or more. Example: “the fastest of the four methods.”

140. Kartu 140

     Pertanyaan

     Pronoun after a preposition?

     Jawaban

     Use the object form. Write “between you and me,” not “between you and I.”

141. Kartu 141

     Pertanyaan

     Apostrophe in a contraction?

     Jawaban

     It marks omitted letters. Example: “can't” contracts “cannot,” and “they're” contracts “they are.”

142. Kartu 142

     Pertanyaan

     Coordinate-adjective test?

     Jawaban

     If “and” works between the adjectives and their order can reverse, use a comma between them.

143. Kartu 143

     Pertanyaan

     Double comparative?

     Jawaban

     Use only one comparative marker. Write “more efficient” or “faster,” not “more faster.”

144. Kartu 144

     Pertanyaan

     Lie or lay?

     Jawaban

     “Lie” means recline and takes no object; “lay” means place and takes an object. Present: lie/lay; past: lay/laid.

145. Kartu 145

     Pertanyaan

     Who's or whose?

     Jawaban

     “Who's” means “who is” or “who has”; “whose” is possessive.

146. Kartu 146

     Pertanyaan

     Standard comparison with “different”?

     Jawaban

     Use “different from.” Example: “This result is different from the earlier estimate.”

147. Kartu 147

     Pertanyaan

     Paired construction with two endpoints?

     Jawaban

     Use “between” with “and”: “between 10 and 15,” not “between 10 to 15.”

148. Kartu 148

     Pertanyaan

     Verb mood in a coordinated idea?

     Jawaban

     Keep the mood consistent unless the meaning changes. Do not shift from a command to a statement without reason.

149. Kartu 149

     Pertanyaan

     Possessive pronoun apostrophe?

     Jawaban

     Do not use one. Write “hers,” “ours,” “yours,” and “theirs.”

150. Kartu 150

     Pertanyaan

     Comma between a preposition and its object?

     Jawaban

     Do not use one. Keep the prepositional phrase intact: “in the final report,” not “in, the final report.”

     

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151. Kartu 151

     Pertanyaan

     Solve $ax+b=c$ for $x$, where $a≠0$.

     Jawaban

     $x=(c-b)/a$. Subtract $b$ first, then divide by $a$.

152. Kartu 152

     Pertanyaan

     Product of powers with the same base?

     Jawaban

     $a^m a^n=a^{m+n}$. Keep the base and add the exponents.

153. Kartu 153

     Pertanyaan

     Unit rate?

     Jawaban

     The amount per 1 unit. Divide both quantities by the same value so the denominator becomes 1.

154. Kartu 154

     Pertanyaan

     Rectangle area?

     Jawaban

     $A=lw$, where $l$ is length and $w$ is width.

155. Kartu 155

     Pertanyaan

     Slope from two points?

     Jawaban

     $m=(y_2-y_1)/(x_2-x_1)$. Subtract coordinates in the same order.

156. Kartu 156

     Pertanyaan

     Quotient of powers with the same base?

     Jawaban

     $a^m/a^n=a^{m-n}$ for $a≠0$.

157. Kartu 157

     Pertanyaan

     Conversion factor setup?

     Jawaban

     Multiply by a ratio equal to 1, with the unwanted unit placed to cancel.

158. Kartu 158

     Pertanyaan

     Triangle area?

     Jawaban

     $A=(1/2)bh$. The height must be perpendicular to the chosen base.

159. Kartu 159

     Pertanyaan

     Slope-intercept form?

     Jawaban

     $y=mx+b$, where $m$ is the slope and $b$ is the y-intercept.

160. Kartu 160

     Pertanyaan

     Power raised to a power?

     Jawaban

     $(a^m)^n=a^{mn}$. Multiply the exponents.

161. Kartu 161

     Pertanyaan

     Dimensional analysis check?

     Jawaban

     Cancel units algebraically. The units left at the end should match the quantity requested.

162. Kartu 162

     Pertanyaan

     Trapezoid area?

     Jawaban

     $A=(1/2)(b_1+b_2)h$. The height is perpendicular to the parallel bases.

163. Kartu 163

     Pertanyaan

     Point-slope form?

     Jawaban

     $y-y_1=m(x-x_1)$. Use a known point $(x_1,y_1)$ and the slope $m$.

164. Kartu 164

     Pertanyaan

     Negative exponent?

     Jawaban

     $a^{-n}=1/a^n$ for $a≠0$.

165. Kartu 165

     Pertanyaan

     Constant of proportionality in $y=kx$?

     Jawaban

     $k=y/x$ for $x≠0$. It is also the unit rate and slope.

166. Kartu 166

     Pertanyaan

     Circle area?

     Jawaban

     $A=πr^2$.

167. Kartu 167

     Pertanyaan

     Intercepts from $Ax+By=C$?

     Jawaban

     Set $y=0$ for the x-intercept and set $x=0$ for the y-intercept.

168. Kartu 168

     Pertanyaan

     Fractional exponent?

     Jawaban

     $a^{m/n}$ means the nth root of $a^m$. For example, $a^{1/2}=√a$.

169. Kartu 169

     Pertanyaan

     Scale drawing length?

     Jawaban

     Use a proportion with corresponding lengths in the same order, then apply the stated scale factor.

170. Kartu 170

     Pertanyaan

     Circle circumference?

     Jawaban

     $C=2πr=πd$.

171. Kartu 171

     Pertanyaan

     Parallel nonvertical lines: slope relationship?

     Jawaban

     They have equal slopes. Distinct parallel lines have different intercepts.

172. Kartu 172

     Pertanyaan

     Difference of squares?

     Jawaban

     $a^2-b^2=(a-b)(a+b)$.

173. Kartu 173

     Pertanyaan

     Percent change?

     Jawaban

     New minus original, divided by the original, then multiplied by 100 percent. The original value is the denominator.

174. Kartu 174

     Pertanyaan

     Arc length from central angle $θ$ in degrees?

     Jawaban

     $L=(θ/360)(2πr)$.

175. Kartu 175

     Pertanyaan

     Perpendicular nonvertical lines: slope relationship?

     Jawaban

     Their slopes are negative reciprocals, so $m_1m_2=-1$.

176. Kartu 176

     Pertanyaan

     Perfect-square trinomial pattern?

     Jawaban

     $a^2+2ab+b^2=(a+b)^2$ and $a^2-2ab+b^2=(a-b)^2$.

177. Kartu 177

     Pertanyaan

     Increase by $r$ percent: multiplier?

     Jawaban

     $1+r/100$. Multiply the original value by this factor.

178. Kartu 178

     Pertanyaan

     Sector area from central angle $θ$ in degrees?

     Jawaban

     $A=(θ/360)(πr^2)$.

179. Kartu 179

     Pertanyaan

     x-intercept of a graph?

     Jawaban

     A point where $y=0$ and the graph meets the x-axis.

180. Kartu 180

     Pertanyaan

     First step in factoring $ax^2+bx+c$?

     Jawaban

     Look for common factors and two binomials whose product reproduces the middle and constant terms.

181. Kartu 181

     Pertanyaan

     Original value after a 20 percent increase to 84?

     Jawaban

     70. Divide the final value by the multiplier: $84/1.20=70$.

182. Kartu 182

     Pertanyaan

     Triangle interior-angle sum?

     Jawaban

     $180°$.

183. Kartu 183

     Pertanyaan

     y-intercept of a graph?

     Jawaban

     A point where $x=0$ and the graph meets the y-axis.

184. Kartu 184

     Pertanyaan

     Roots from $(x-p)(x-q)=0$?

     Jawaban

     $x=p$ or $x=q$, by the zero-product property.

185. Kartu 185

     Pertanyaan

     Weighted average?

     Jawaban

     Sum of each value times its weight, divided by the sum of the weights. Do not take a simple average of unequal groups.

186. Kartu 186

     Pertanyaan

     Exterior angle of a triangle?

     Jawaban

     It equals the sum of the two remote interior angles.

187. Kartu 187

     Pertanyaan

     Line through two points?

     Jawaban

     Find the slope, then substitute either point into point-slope or slope-intercept form.

188. Kartu 188

     Pertanyaan

     Quadratic formula?

     Jawaban

     $x=(-b±√(b^2-4ac))/(2a)$ for $ax^2+bx+c=0$.

189. Kartu 189

     Pertanyaan

     Arithmetic mean?

     Jawaban

     Add all values and divide by the number of values.

190. Kartu 190

     Pertanyaan

     Parallel lines cut by a transversal: alternate interior angles?

     Jawaban

     They are congruent.

191. Kartu 191

     Pertanyaan

     Slope's units in context?

     Jawaban

     Output units per input unit. In $y$ versus $x$, slope units are y-units divided by x-units.

192. Kartu 192

     Pertanyaan

     What does $b^2-4ac$ tell you?

     Jawaban

     The number of real solutions: positive gives two, zero gives one, and negative gives none.

193. Kartu 193

     Pertanyaan

     Median?

     Jawaban

     The middle value after ordering the data; for an even count, average the two middle values.

194. Kartu 194

     Pertanyaan

     Similar triangles: corresponding sides?

     Jawaban

     They are proportional. Match sides opposite equal angles.

195. Kartu 195

     Pertanyaan

     Direct variation model?

     Jawaban

     $y=kx$. It is linear and passes through the origin.

196. Kartu 196

     Pertanyaan

     Vertex x-coordinate of $ax^2+bx+c$?

     Jawaban

     $x=-b/(2a)$.

197. Kartu 197

     Pertanyaan

     Range of a data set?

     Jawaban

     Maximum minus minimum.

198. Kartu 198

     Pertanyaan

     Scale factor $k$: area factor?

     Jawaban

     $k^2$. Lengths scale by $k$, while areas scale by the square of $k$.

199. Kartu 199

     Pertanyaan

     Solution of a two-line system?

     Jawaban

     The intersection point, whose coordinates satisfy both equations.

200. Kartu 200

     Pertanyaan

     Vertex form of a quadratic?

     Jawaban

     $y=a(x-h)^2+k$, with vertex $(h,k)$.

201. Kartu 201

     Pertanyaan

     Interquartile range?

     Jawaban

     $IQR=Q_3-Q_1$. It measures the spread of the middle half of the data.

202. Kartu 202

     Pertanyaan

     Pythagorean theorem?

     Jawaban

     $a^2+b^2=c^2$ for a right triangle, where $c$ is the hypotenuse.

203. Kartu 203

     Pertanyaan

     Substitution in a system?

     Jawaban

     Solve one equation for a variable and replace that variable in the other equation.

204. Kartu 204

     Pertanyaan

     Axis of symmetry of $y=a(x-h)^2+k$?

     Jawaban

     $x=h$.

205. Kartu 205

     Pertanyaan

     Larger standard deviation means what?

     Jawaban

     The data are more spread out around the mean.

206. Kartu 206

     Pertanyaan

     45°-45°-90° side ratio?

     Jawaban

     $1:1:√2$. The hypotenuse is a leg times $√2$.

207. Kartu 207

     Pertanyaan

     Elimination in a system?

     Jawaban

     Add or subtract equations so one variable cancels, then solve for the other.

208. Kartu 208

     Pertanyaan

     Completing the square?

     Jawaban

     For $x^2+bx$, add $(b/2)^2$ to form $(x+b/2)^2$.

209. Kartu 209

     Pertanyaan

     Effect of a high outlier on the mean?

     Jawaban

     It usually pulls the mean upward. The median is often less affected.

210. Kartu 210

     Pertanyaan

     30°-60°-90° side ratio?

     Jawaban

     $1:√3:2$, opposite $30°$, $60°$, and $90°$ respectively.

211. Kartu 211

     Pertanyaan

     Parallel lines in a system?

     Jawaban

     No solution when they are distinct: equal slopes and different intercepts.

212. Kartu 212

     Pertanyaan

     Sum and product of roots of $ax^2+bx+c=0$?

     Jawaban

     Sum $=-b/a$ and product $=c/a$.

213. Kartu 213

     Pertanyaan

     Add the same constant to every data value: effect?

     Jawaban

     The mean and median increase by that constant; measures of spread stay unchanged.

214. Kartu 214

     Pertanyaan

     Right-triangle sine?

     Jawaban

     Sine of $θ$ equals opposite over hypotenuse.

215. Kartu 215

     Pertanyaan

     Same line written two ways in a system?

     Jawaban

     Infinitely many solutions. Simplifying either equation produces the other.

216. Kartu 216

     Pertanyaan

     Remainder when $P(x)$ is divided by $x-a$?

     Jawaban

     $P(a)$, by the Remainder Theorem.

217. Kartu 217

     Pertanyaan

     Multiply every data value by positive $k$: effect?

     Jawaban

     The mean, median, range, IQR, and standard deviation are all multiplied by $k$.

218. Kartu 218

     Pertanyaan

     Right-triangle cosine?

     Jawaban

     Cosine of $θ$ equals adjacent over hypotenuse.

219. Kartu 219

     Pertanyaan

     Multiply or divide an inequality by a negative number?

     Jawaban

     Reverse the inequality sign.

220. Kartu 220

     Pertanyaan

     When is $x-a$ a factor of $P(x)$?

     Jawaban

     When $P(a)=0$, by the Factor Theorem.

221. Kartu 221

     Pertanyaan

     Joint probability from a two-way table?

     Jawaban

     Divide the count in the intersection cell by the grand total.

222. Kartu 222

     Pertanyaan

     Right-triangle tangent?

     Jawaban

     Tangent of $θ$ equals opposite over adjacent.

223. Kartu 223

     Pertanyaan

     Compound inequality with “and”?

     Jawaban

     Use the intersection: values that satisfy both inequalities.

224. Kartu 224

     Pertanyaan

     Even degree with positive leading coefficient: end behavior?

     Jawaban

     Both ends rise: $P(x)→∞$ as $x→±∞$.

225. Kartu 225

     Pertanyaan

     Conditional probability $P(A|B)$?

     Jawaban

     $P(A∩B)/P(B)$. Restrict the denominator to outcomes in $B$.

226. Kartu 226

     Pertanyaan

     Complementary acute angles: sine–cosine relationship?

     Jawaban

     The sine of $θ$ equals the cosine of $90°-θ$.

227. Kartu 227

     Pertanyaan

     Compound inequality with “or”?

     Jawaban

     Use the union: values that satisfy at least one inequality.

228. Kartu 228

     Pertanyaan

     Odd degree with positive leading coefficient: end behavior?

     Jawaban

     The left end falls and the right end rises.

229. Kartu 229

     Pertanyaan

     Independent events $A$ and $B$?

     Jawaban

     $P(A∩B)=P(A)P(B)$. Knowing one occurred does not change the probability of the other.

230. Kartu 230

     Pertanyaan

     Distance between $(x_1,y_1)$ and $(x_2,y_2)$?

     Jawaban

     $√((x_2-x_1)^2+(y_2-y_1)^2)$.

231. Kartu 231

     Pertanyaan

     Solve $|x-a|=b$ for $b≥0$.

     Jawaban

     $x-a=b$ or $x-a=-b$. Absolute value represents distance from $a$.

232. Kartu 232

     Pertanyaan

     Exponential growth model?

     Jawaban

     $y=a(1+r)^t$, where $a$ is the initial value and $r$ is the growth rate per period.

233. Kartu 233

     Pertanyaan

     Mutually exclusive events?

     Jawaban

     They cannot occur together, so $P(A∪B)=P(A)+P(B)$.

234. Kartu 234

     Pertanyaan

     Midpoint of two points?

     Jawaban

     $((x_1+x_2)/2,(y_1+y_2)/2)$.

235. Kartu 235

     Pertanyaan

     Solve $|x-a|<b$ for $b>0$.

     Jawaban

     $a-b<x<a+b$. The solution lies within distance $b$ of $a$.

236. Kartu 236

     Pertanyaan

     Exponential decay model?

     Jawaban

     $y=a(1-r)^t$, where $0<r<1$ is the decay rate per period.

237. Kartu 237

     Pertanyaan

     Complement rule?

     Jawaban

     The probability that $A$ does not occur is $1-P(A)$.

238. Kartu 238

     Pertanyaan

     Circle with center $(h,k)$ and radius $r$?

     Jawaban

     $(x-h)^2+(y-k)^2=r^2$.

239. Kartu 239

     Pertanyaan

     Evaluate $f(a)$?

     Jawaban

     Substitute $a$ for every input variable in the function rule, then simplify.

240. Kartu 240

     Pertanyaan

     Growth factor 1.08: percent growth rate?

     Jawaban

     8 percent. Subtract 1 and convert the decimal to a percent.

241. Kartu 241

     Pertanyaan

     Representative random sample permits what conclusion?

     Jawaban

     A cautious generalization from the sample to the population it represents.

242. Kartu 242

     Pertanyaan

     Radius from $(x-h)^2+(y-k)^2=R$?

     Jawaban

     $r=√R$, provided $R>0$.

243. Kartu 243

     Pertanyaan

     Linear table: constant slope check?

     Jawaban

     Equal changes in $x$ must produce equal changes in $y$; compare $Δy/Δx$ across intervals.

244. Kartu 244

     Pertanyaan

     Decay factor 0.73: percent decrease?

     Jawaban

     27 percent. Compute $1-0.73=0.27$.

245. Kartu 245

     Pertanyaan

     Random assignment permits what causal claim?

     Jawaban

     If the experiment is well controlled, differences between treatment groups can support a causal conclusion.

246. Kartu 246

     Pertanyaan

     Radius and tangent at the contact point?

     Jawaban

     They are perpendicular.

247. Kartu 247

     Pertanyaan

     Positive slope means what for a linear function?

     Jawaban

     The output increases as the input increases.

248. Kartu 248

     Pertanyaan

     Solve $3^{2x}=3^{10}$.

     Jawaban

     $x=5$. Equal positive bases other than 1 have equal exponents.

249. Kartu 249

     Pertanyaan

     Observational study supports causation?

     Jawaban

     No. It can show association, but uncontrolled confounding variables may explain the pattern.

250. Kartu 250

     Pertanyaan

     Rectangular-prism volume?

     Jawaban

     $V=lwh$, or base area times height.

251. Kartu 251

     Pertanyaan

     Arithmetic sequence common difference?

     Jawaban

     Subtract consecutive terms: $d=a_n-a_{n-1}$.

252. Kartu 252

     Pertanyaan

     Compound interest formula?

     Jawaban

     $A=P(1+r/n)^{nt}$, where $n$ is the number of compounding periods per year.

253. Kartu 253

     Pertanyaan

     Larger random sample: effect on margin of error?

     Jawaban

     It generally decreases the margin of error when the sampling method stays sound.

254. Kartu 254

     Pertanyaan

     Cylinder volume?

     Jawaban

     $V=πr^2h$.

255. Kartu 255

     Pertanyaan

     Arithmetic sequence nth term?

     Jawaban

     $a_n=a_1+(n-1)d$.

256. Kartu 256

     Pertanyaan

     Rational expression: first domain check?

     Jawaban

     Exclude values that make any original denominator zero, even if a factor later cancels.

257. Kartu 257

     Pertanyaan

     Slope of a line of best fit?

     Jawaban

     The predicted change in the response variable for each 1-unit increase in the explanatory variable.

258. Kartu 258

     Pertanyaan

     Cone volume?

     Jawaban

     $V=(1/3)πr^2h$.

259. Kartu 259

     Pertanyaan

     Solve a literal equation for one variable?

     Jawaban

     Treat the other symbols as constants and use inverse operations to isolate the target variable.

260. Kartu 260

     Pertanyaan

     Why check rational-equation solutions?

     Jawaban

     Clearing denominators can produce a value excluded from the original equation. Reject any value that makes an original denominator zero.

261. Kartu 261

     Pertanyaan

     Residual?

     Jawaban

     Actual value minus predicted value. A positive residual means the point lies above the model.

262. Kartu 262

     Pertanyaan

     Sphere volume?

     Jawaban

     $V=(4/3)πr^3$.

263. Kartu 263

     Pertanyaan

     Boundary for a two-variable linear inequality?

     Jawaban

     Replace the inequality with equality to draw the boundary line, then test a point for the shaded side.

264. Kartu 264

     Pertanyaan

     Why check a solution after squaring both sides?

     Jawaban

     Squaring can introduce an extraneous solution. Substitute each candidate into the original radical equation.

265. Kartu 265

     Pertanyaan

     Positive correlation?

     Jawaban

     Larger values of one variable tend to occur with larger values of the other. It does not prove causation.

266. Kartu 266

     Pertanyaan

     Rectangular-prism surface area?

     Jawaban

     $SA=2(lw+lh+wh)$.

267. Kartu 267

     Pertanyaan

     Check a proposed system solution?

     Jawaban

     Substitute the ordered pair into both original equations. It must make both true.

268. Kartu 268

     Pertanyaan

     Simplify $√72$.

     Jawaban

     $6√2$. Factor $72=36×2$ and take $√36$ outside the radical.

269. Kartu 269

     Pertanyaan

     Extrapolation risk?

     Jawaban

     A model may not keep the same pattern outside the observed data range.

270. Kartu 270

     Pertanyaan

     Area scale factor when lengths double?

     Jawaban

     4. Area scales with the square of the length factor: $2^2=4$.

271. Kartu 271

     Pertanyaan

     Horizontal line slope?

     Jawaban

     0. Its y-value does not change as x changes.

272. Kartu 272

     Pertanyaan

     Inverse function setup?

     Jawaban

     Write $y=f(x)$, swap $x$ and $y$, then solve for $y$. Restrict the domain when needed to make the inverse a function.

273. Kartu 273

     Pertanyaan

     Percentage points versus percent change?

     Jawaban

     A rate moving from 40 percent to 50 percent rises 10 percentage points but 25 percent relative to 40.

274. Kartu 274

     Pertanyaan

     y-intercept in a context?

     Jawaban

     The predicted or initial output when the input is zero; check whether zero is meaningful in the situation.

275. Kartu 275

     Pertanyaan

     Quadratic maximum or minimum from vertex form?

     Jawaban

     The vertex value is $k$ in $a(x-h)^2+k$; it is a minimum if $a>0$ and a maximum if $a<0$.

276. Kartu 276

     Pertanyaan

     Line parallel to $y=mx+b$ through $(p,q)$?

     Jawaban

     $y-q=m(x-p)$. Parallel lines keep the same slope.

277. Kartu 277

     Pertanyaan

     Graph of $f(x-h)+k$?

     Jawaban

     Shift the graph of $f$ right $h$ units and up $k$ units.

278. Kartu 278

     Pertanyaan

     Population versus sample?

     Jawaban

     The population is the full group of interest; a sample is the subset actually observed.

279. Kartu 279

     Pertanyaan

     Linear model from initial value $b$ and rate $m$?

     Jawaban

     $y=mx+b$. The initial value is the output at input zero.

280. Kartu 280

     Pertanyaan

     Function composition $(f∘g)(x)$?

     Jawaban

     $f(g(x))$. Evaluate the inner function $g$ first.

281. Kartu 281

     Pertanyaan

     Density?

     Jawaban

     Mass divided by volume. Keep the units consistent.

282. Kartu 282

     Pertanyaan

     Vertical line slope?

     Jawaban

     Undefined because $Δx=0$, which would require division by zero.

283. Kartu 283

     Pertanyaan

     Nonlinear system with one equation solved for $y$?

     Jawaban

     Substitute that expression for $y$ into the other equation, solve for $x$, then find each matching $y$.

284. Kartu 284

     Pertanyaan

     Weighted percentage across unequal groups?

     Jawaban

     Convert each percentage to a count or weight, add the successes, then divide by the combined total.

285. Kartu 285

     Pertanyaan

     Line perpendicular to a nonzero finite slope $m$ through $(p,q)$?

     Jawaban

     Use slope $-1/m$ in $y-q=(-1/m)(x-p)$, when $m$ is nonzero and finite.

286. Kartu 286

     Pertanyaan

     Cancel a common factor in a rational expression?

     Jawaban

     Cancel factors, not terms, and keep every restriction from the original denominator.

287. Kartu 287

     Pertanyaan

     Solve a linear equation containing fractions?

     Jawaban

     Multiply every term by the least common denominator first, then solve the resulting linear equation.

288. Kartu 288

     Pertanyaan

     Rewrite $a^{2x}$ using base $a^x$.

     Jawaban

     $(a^x)^2$. This can turn an exponential expression into a quadratic form.

289. Kartu 289

     Pertanyaan

     Rate units check?

     Jawaban

     Write the numerator and denominator units explicitly, such as kilometers per hour, then convert only if the requested units differ.

290. Kartu 290

     Pertanyaan

     Strict versus inclusive inequality endpoint?

     Jawaban

     Use an open point for $<$ or $>$ and a closed point for $≤$ or $≥$.

291. Kartu 291

     Pertanyaan

     Even-multiplicity zero on a graph?

     Jawaban

     The graph touches the x-axis and turns around; it does not cross there.

292. Kartu 292

     Pertanyaan

     System word problem: first setup step?

     Jawaban

     Define the variables with units, then translate two independent relationships into equations.

293. Kartu 293

     Pertanyaan

     When does a quadratic have exactly one real solution?

     Jawaban

     When $b^2-4ac=0$. The repeated root is the vertex's x-coordinate.

294. Kartu 294

     Pertanyaan

     Two-way table: denominator for “among group B”?

     Jawaban

     Use the total for group B, not the grand total. The wording makes B the condition.

295. Kartu 295

     Pertanyaan

     Find an input when $f(x)=k$.

     Jawaban

     Set the function rule equal to $k$ and solve for $x$; there may be zero, one, or several inputs.

296. Kartu 296

     Pertanyaan

     Graph of $-f(x)$?

     Jawaban

     Reflect the graph of $f(x)$ across the x-axis.

297. Kartu 297

     Pertanyaan

     Three consecutive integers starting with $n$?

     Jawaban

     $n$, $n+1$, and $n+2$.

298. Kartu 298

     Pertanyaan

     Line–parabola intersections from a substituted quadratic?

     Jawaban

     Use its discriminant: positive means two intersections, zero one tangent intersection, and negative none.

299. Kartu 299

     Pertanyaan

     Linear equation with no solution: coefficient pattern?

     Jawaban

     After simplification, the variable terms cancel and leave a false statement, such as $0=5$.

300. Kartu 300

     Pertanyaan

     Zeros of a function on its graph?

     Jawaban

     The x-coordinates where the graph meets the x-axis, so $f(x)=0$.

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