Let f(x) = 4x+3 and g(x) = -2x+5 Find ( f )( g )(5) a. 23 b. –41 c. –17 d. –5

asked Nov 17, 2016 157k views

4 votes

Let f(x) = 4x+3 and g(x) = -2x+5

Find ( f )( g )(5)
a. 23
b. –41
c. –17
d. –5

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3 votes

f(x) = 4x + 3
g(x) = -2x + 5

(f · g)(5) = (4(5) + 3)(-2(5) + 5)
(f · g)(5) = (20 + 3)(-10 + 5)
(f · g)(5) = (23)(-5)
(f · g)(5) = -115

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