Question

Find f(x) and g(x) so that the function can be described as y = f(g(x)).

y = nine divided by x squared + 2

Answer 1

let g(x) = x^2+2 let f(x) = 9/x f(g(x)) is therefore equal to f(x^2 + 2) which is equal to 9/(x^2+2).