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