Question

F(x) = √x+7 = ; g(x) = 8x - 11 find f(g(x))

Answer 1

`f(g(x)) = √(8x - 4)`

Explanation:

`f(x) = √(x + 7) \\ \\ g(x) = 8x - 11`

To find f(g(x)) substitute g(x) into f(x) that's for every x in f (x) replace it by g (x)

We have

`f(g(x)) = √(8x - 11 + 7)`

We have the final answer as

`f(g(x)) = √(8x - 4)`

Hope this helps you