Question

PLEASE HELP!
Use each diagram to find (g of f)(x). Then evaluate (g of f)(3) and (g of f)(-2).

(diagram is in link below)

Answer 1

I can help you with #20
(g of f)(3) means g(f(3))
sub x=3 into f(x)
f(3)= 2(3)=6
g(f(3))=g(6)
sub x=6 into g(x)
g(6)=6+3=9

Answer 2

i don't understand where i'm starting..the g of f)(x) or what is says after evaluate or the diagram. I am so confused.

Answer 3

Oh wait I think I understand. But you only did (g of f)(3) right not the -2?

Answer 4

yes I only did (g of f)(3)