Hello, I'm trying to find the an expression to define the inverse of a function of a function (i think that's what it is anyway) $\displaystyle h(x) = f(\frac{x}{b})$ and I was wondering if my method of multiplying both sides by $\displaystyle b$ and then inversing to get $\displaystyle h^{-1}(x) = f^{-1}(x*b)$ is the correct one or if I've done something right, because there seems to be something a little off to that method... or at least i think so.