Question

If `f(x)=x-5` and `g(x)=x^2+3`, how do you find f[g(-2)]?

Answer 1

2

Explanation:

# g(x) = x^2 + 3

hence g(-2) = `(-2)^2 + 3 = 4 + 3 = 7`

and so f(g(-2)) = f(7) = 7 - 5 = 2