Question

Please help! f(x)=x^2 what is g(x)

Answer 1

A.

Observe that point $(3,3)$ can only be obtained via function A: $\frac{1}{3}3^2=3$.

In all other cases it fails,

$\frac{1}{9}3^2\neq3$

$3\cdot3^2\neq3$

$(\frac{1}{3}\cdot3)^2\neq3$

Hope this helps :)