Exam (elaborations)
SAT MATHEMATICS LEVEL 2 PRACTICE TEST 8 WITH ANSWER KEY AT THE END
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실전 91. If 𝑓(𝑡) = 3𝑡 2 − 8𝑡 + 1, then 𝑓(3) − 𝑓(2) =
(A) 7
(B) 4
(C) –3
(D) –4
(E) –7
5, 8, 9, 10, t
2. For what value of t is the average (arithmetic
mean) of the five numbers above equal to 7?
(A) –4
(B) –1
(C) 3
(D) 4
(E) 7
3. In the xy-plane, which of the following is an
equation for the line that contains the point
(2,–3) and has an x-intercept of 5?
(A) 𝑦 = −4𝑥 + 5
(B) 𝑦 = 𝑥 − 5
(C) 𝑦 = 2𝑥 − 7
(D) 𝑦 = 3𝑥 − 9
(E) 𝑦 = 5𝑥 − 3
4. When 𝑛 = 5, which of the following is
greatest?
6
(A) 𝑛
6
(B) 𝑛+1
6
(C) 𝑛−1
𝑛
(D) 6
𝑛+2
(E) 6
5. If |𝑥 − 2| = 9, which of the following could
equal |𝑥 + 3|?
(A) 4
(B) 7
(C) 8
(D) 10
(E) 11
1
, 실전 9
6. In the coordinate plane, if the distance
between the point (𝑥, 𝑦) and the origin is 3,
what is the distance between the point
(2𝑥, 2𝑦) and the origin?
3
(A) 2
(B) 3
(C) 6
(D) 6√2
(E) 9
7. What is the radius of a sphere whose volume
is 75.8 cubic centimeters?
(A) 1.0cm
(B) 2.6cm
(C) 3.2 cm
(D) 3.8cm
(E) 5.6cm
𝑦 𝑥
8. If 2𝑥 = 𝑦 and 𝑧 = 4, then 𝑧 =
(A) 8
(B) 4
(C) 2
1
(D)
4
1
(E) 8
9. For which of the following functions is
𝑓(2) = 𝑓(4)?
(A) 𝑓(𝑥) = 2𝑥
(B) 𝑓(𝑥) = 𝑥 2
(C) 𝑓(𝑥) = (𝑥 + 3)2
(D) 𝑓(𝑥) = (𝑥 − 3)2
(E) 𝑓(𝑥) = |𝑥 − 4|
sin2 𝜃+cos2 𝜃
10. If 0º < 𝜃 < 90º and = 1.61, what
sin 𝜃
is the measure of 𝜃?
(A) 31.8º
(B) 37.6º
(C) 38.4º
(D) 51.6º
(E) 58.2º
2
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