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

What's fg(x) ?

Answer 2

it's (-2x-7)(-4x+3)

Answer 3

now plug -5 for x

Answer 4

That means f composed of g. Meaning you plug in the function g(x) in your function and then evaluate it. So plug in -5 for x.