Question

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

y = Four divided by x squared. + 9

Answer 1

Answer Choices:
f(x) = x + 9, g(x) = Four divided by x squared.
f(x) = x, g(x) = Four divided by x. + 9
f(x) = One divided by x., g(x) = Four divided by x. + 9
f(x) = Four divided by x squared., g(x) = 9

Answer 2

to get f(g(x)) you replace the x in f(x) by g(x)

Answer 3

Yeah, I get that. I feel like it would be A but I need someone to check it and explain it if I am wrong.

Answer 4

@welshfella