Question

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

A.
3

B.
-53

C.
-9

D.
23

Answer 1

Help please

Answer 2

@Kainui

Answer 3

I am stuck on 3 of these can you help me please

Answer 4

So if you've got (f o g)(-5) that really means f(g(-5)).

If that seems confusing, that's ok we can break it down into parts.

Do you know what g(-5) is? That just means you take g(x)=-4x+3 and then when you want to calculate g(-5) then you just replace x everywhere with -5. Try it out.

After that, you'll get a number that is what g(-5) is. Then you plug that number in similarly for f(x) to get f(g(-5)) if that makes sense. Try it out, and I'll help you if you get stuck.

Answer 5

trying

Answer 6

d?

Answer 7

23

Answer 8

or 3 @Kainui

Answer 9

Can you show me your work?

Answer 10

Are you just solving for g(-5) or f(g(-5)) right now?