Question

If f(x) = x2 − 2x + 9 and g(x) = 8 − x, what is (f o g)(−4)?

Answer 1

9

Answer 2

(FoG)(-4) just means evaluate g(x) at -4, then take that value and use it as the x value for evaluating f(x)

Answer 3

G(-4) is serving as the input for F(x)

Answer 4

I still don't quite get it.

Answer 5

It's just the notation that is kind of confusing

Answer 6

Indeed

Answer 7

For FoG(x), G(x) is the "inside" function that is being evaluated first. After putting -4 into it, you get 12

Answer 8

Here are the options:
A. 111
B. 144
C. 120
D. 129

Answer 9

129

Answer 10

I had a feeling it was D, just wasn't sure. Thank you all