Page 11 - Pharmacy College Admission Test Review Book

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11. If f(x) = (5x + 6) , what is the value of 17. If f(x) = 5x + 7x + 2x, g(x) = 2x + 4x,
-1
f
f (x)? what is the value of ( )x, x≠ -2?
g
2
a. 5x + 36 2
2
b. (x -5)/6 a. 5x + 7x + 2
c. 5x + 10 (2x + 4)
2
d. (x - 6)/5
b. 2x + 4
2
12. If f(x) = 3x + 2 and g(x) = 2x + 3, what
2
is g(f(x))? c. 5 +12
3 +1
a. 12x + 32x + 11
2
2
b. 18x + 24x + 11 d. 4x + 13
2
c. 5x + 6
3
d. 11x + 35 18. If f(x) = 2x + 5x + 7, g(x) = 5x - 7, what
2
is the value of (f + g)(x)?
2
13. If f(x) = x -2x + 3, what is value of
3
f(f(x))? a. 2x + 10x
3
b. 2x + 10x + 14
a. x -12x -2x + 4x + 6 c. 10x - 7
2
4
3
2
b. -4x + 8x -8x + 6 d. 2x + 10x
3
2
c. x -4x + 8x -8x + 6
4
2
3
1
d. x + 8x + 6 19. If f(x) = 1 - , where x ≠ 0, 1 what is the
2
4

value of f(f(fx))?
14. If f(x) = x + x + 1, g(x) = x - 1, and h(x)
2
= 2x, what would be the value of f(g(hx))? a. 1 / (1 - x)
b. 1 / x
a. -2x + 1 c. x
b. 4x -2x + 1 d. x 2
2
c. 4x -2x
2
-1
d. 4x -2x + 1 20. If f(x) = 3x + 2, what is f (x)?
2
3

15. If f(x) = 1− , x ≠ -1, find f(f(x)? a. 2x + 3
1+ b. (x-2) / 3
c. (3x -2) / 3
a. x - 1 d. - 2/3
3
b. x -2x + 1
2
c. x 21. If f(x) = 3x + 2, (gof)(x) = 6x + 7 and
d. 4x - 3 −1 −2
2
( ) = 3 , what is the value of g(x)?
16. If f(x) = 2x - 5x + 6 and g(x) = 2x + 3,
2
what is the value of (f-g)(5)? a. 9x + 9
b. 2x + 3
a. 25 c. (x -2 ) / 3
b. 54 d. 4x + 5
c. 67
d. 18

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