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12.Practice.Tests.for.the.SAT_2015-2016_1128p

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632<br />

Section 8<br />

Practice Test Seven<br />

12. What is <strong>the</strong> y-intercept of <strong>the</strong> line that passes<br />

through <strong>the</strong> points (1, 21) and (4, 42)?<br />

(A) 0<br />

(B) 7<br />

(C) 9<br />

(D) 14<br />

(E) 19<br />

13. Iff(x) =<br />

(A)<br />

(B)<br />

3<br />

x-3 + xT , what is <strong>the</strong> value off(3)?<br />

1 + 3v'3<br />

27<br />

1 + 3v'3<br />

81<br />

1 + 81 v'3<br />

(C)<br />

27<br />

(D) 1 + 27v'3<br />

14. r, s, t<br />

(E) 27 + 81 v'3<br />

In <strong>the</strong> sequence above, if each term after <strong>the</strong> first is<br />

x more than <strong>the</strong> previous term, what is <strong>the</strong> average<br />

of r, s, and tin terms of rand x?<br />

(A) r + x<br />

Subtract 6 from x.<br />

Divide this sum by 3.<br />

Add 4 to this quotient.<br />

15. Which of <strong>the</strong> following is <strong>the</strong> result obtained by<br />

per<strong>for</strong>ming <strong>the</strong> operations described above?<br />

(A)<br />

x-2<br />

3<br />

(B) x + 2<br />

3<br />

(C) x - 6<br />

3<br />

(D) x + 6<br />

3<br />

(E) 6 x + 4<br />

3<br />

16. What is <strong>the</strong> least positive integer a <strong>for</strong> which 25a is<br />

<strong>the</strong> cube of an integer?<br />

(A)<br />

(B) 3<br />

(C) 5<br />

(D) 25<br />

(E) 125<br />

(B) r + <br />

3<br />

(C) r+ 2 x<br />

3<br />

(D) r + x<br />

3<br />

(E) 3(r + x)<br />

c IF·Yoirt=fr.Jis'H BEFORE TIME IS CALLED, YOU MAY CHECK YOUR WORK ON .<br />

tT.HJ:'jlO,N ?NLy. DO .NOT TURN TO ANY OTHER SECTION IN THE TEST.<br />

STOP

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