Find the inverse of f(x)=x4f(x) = \frac{x}{4}f(x)=4x.
f−1(x)=4xf^{-1}(x) = 4xf−1(x)=4x
f−1(x)=x−4f^{-1}(x) = x - 4f−1(x)=x−4
f−1(x)=4xf^{-1}(x) = \frac{4}{x}f−1(x)=x4
f−1(x)=x+4f^{-1}(x) = x + 4f−1(x)=x+4