Question

Hello, I need some help with this algebra problem please

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

Answer 1

So its f composed of g of -5...written like this f(g(-5))

Answer 2

Plug (-5) into the function of g to get

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

Answer 3

That would be 23, right?

Answer 4

Exactly...now plug (23) into the function of f to get

f(x) = -2(23) - 7

Answer 5

-53?

Answer 6

Correct...that is your answer

Answer 7

oh thank you. Was trying several other ways. Thanks again.

Answer 8

No problem and good luck