Question

Let f(x) = x - 2 and `g(x) = x^2 - 7x - 9` how do you find f(g(-1))?

Answer 1

f(g(-1)) = -3

Explanation:

The first step is to find g(-1):
`g(-1) = (-1)^2 - 7(-1) - 9`
`= 1 + 7 - 9 = -1`

Since we know g(-1) = -1, we can say f(g(-1)) = f(-1).

The next step is to do f(-1);
`f(-1) = -1 - 2 = -3`