Question

Let f(x) = x – 2 and g(x) = 3x + 4. What is f(g(x))?

2x – 2
3x + 2
4x + 2
2x + 6

Answer 1

f(x) = x – 2 and g(x) = 3x + 4
f(g(x))= (3x + 4) – 2

see what i did there?

Answer 2

simplify accordingly

Answer 3

Um, no. Heh, still don't get it.

Answer 4

you can't see that x turns into 3x + 4?

Answer 5

Oh. Like, when something equals x and another thing means y and you substitute it in?

Answer 6

Yeah I substituted.

Answer 7

Okeyyyyy..

Answer 8

(3x + 4) – 2
3x + 4 – 2
3x + 2

Answer 9

Oh, okay. I thought that was it. Thanks! (;