Question

Let f(x) = -2x - 7 and g(x) = -4x + 3. Find (f ° g)(-5).
A. 23

B. –53

C. –9

D. 3

Answer 1

(f ° g)(-5) = f(g(-5))

you'll want to find f(g(x)) first which is f(x) with g(x) plugged in as every x.

f(g(x)) = -2(-4x + 3) - 7

then plug in -5 as x

Answer 2

so that would give me -53 correct?