Question

Find the following f(g(x)) when

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

Answer 1

4 + 4x = f(g(x))

Explanation:

According to the compositional function, we plug the g(x) function into the f(x) function in replacement for every x we see:

`2(2x) + 4 = 4x + 4 \\f(g(x)) = 4x + 4`

The above answer is written in reverse, which is the exact same result.

I am joyous to assist you anytime.

Answer 2

f(2x)= 2(2x)+4= 4x + 4 is the solution