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ACCUPLACER
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Composition of Functions
Grade Level
ACCUPLACER
AAF.077 Composition of Functions
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Let f(x) = (x
2
+ 4)/(x - 2) and g(x) = 5 - 2x. Which expression is equivalent to f(g(x))?
A
(-2x
2
+ 5x - 18)/(x - 2)
B
(-4x
2
+ 20x - 29)/(2x - 3)
C
(-2x
3
+ 5x
2
- 8x + 20)/(x - 2)
D
(-x
2
+ 9x - 6)/(x - 2)
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