Question

Let f(x) = 4x - 7 and g(x) = 2x - 3. find f of g (4)

Answer 1

okay, you need to first solve g(4). Do you know how to do that?

Answer 2

no

Answer 3

okay. Plug 4 in for x in g(x)=2x-3

Answer 4

So, you'd have g=2(4)-3

Answer 5

so its 5?

Answer 6

yes... and since you're finding f(g) and g=5, plug 5 in for f(x)=4x-7

Answer 7

13?

Answer 8

yep :) Good job.

Answer 9

so what is the final answer?

Answer 10

13

Answer 11

thank you!

Answer 12

You're welcome :)