Question

What is the composition f∘g if f(x)=4−2x and g(x)=3x2?

Answer 1

Answer: F(g(x))= 6x+8

Explanation:

(f•g)(x)

Step 1- Substitute G into F(x) equation by using the related value x

f(g(x)= 4-2(3x-2)

Step 2- Simplify

F(g(x))= 4-6x+4

Step 3- Solve

F(g(x))=6x+8