Question

F(x) = square root of x+9 ; g(x) = 8x - 13
Find f(g(x))

Answer 1

`√(8x-4)`

Explanation:

Substitute x = g(x) into f(x) , that is

f(g(x))

= f(8x - 13)

=
`√(8x-13+9)`

=
`√(8x-4)`