Question

If f(x) = 3x + 1 and g(x) = 2x − 4, find f[g(2)].

Answer 1

You need to solve from the inside out. So, first evaluate g(2). Once you get this answer, you'll plug it into f(x) to get your final answer.

Answer 2

g(2) = 0 ?

Answer 3

Right. Now plug in x=0 to f(x)

Answer 4

f (0) = 1?

Answer 5

Right, so f[g(2)]=1

Answer 6

Alright Thanks!