Question

What is the function of f(g(x)) if f(x)= x^2+1 and g(x)=3x

Answer 1

Explanation:

For this composition function,
`f(g(x))`, we should substitute
`g(x)` anytime we see an
`x` variable in
`f(x)`:

`x^(2) + 1`

`[g(x)]^(2) + 1`

`(3x)^(2) + 1`

`9x^(2) + 1`