Question

6)

Find f o g

f(x) = x +6 g(x) = 3x2
A) 3x2 + 6
B) 3x2 + 36x + 108
C) 3x2 + x + 6
D) 3x3 + 18x2

Answer 1

A) 3x^2 + 6

Explanation:

f o g means input g(x) into the function f(x).

So input 3x^2 into the x variable.

f[g(x)] = 3x^2 +6