If f(x)=8x and g(x)=2x+1, find(f•g)(x). A) 16x+1 B) 10x+1 C) 16x+8 D) 16x^2+8x

asked Jan 6, 2018 89.6k views

3 votes

If f(x)=8x and g(x)=2x+1, find(f•g)(x).

A) 16x+1
B) 10x+1
C) 16x+8
D) 16x^2+8x

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2 votes

(f•g)(x) = 8x * (2x+1) = 8x(2x + 1)
8x(2x + 1)
16x^2 + 8x

(f•g)(x) = 16x^2 + 8x

Schiavuzzi answered Jan 8, 2018

8.2k points

1 vote

(F of g)(x) = f(2x+1) = 8*(2x+1) = 16x + 8 Choice B

Jeremythuff answered Jan 12, 2018

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