Problem
The following function is one-to-one. Find the inverse of the function. Then graph the function and its inverse on the same set of axes. \[ f(x)=x+6 \] \[ f^{-1}(x)= \]
Solution
Step 1 ：Let $y = x + 6$. Then $x = y - 6$.
Step 2 ：Hence, the inverse function is given by $f^{-1}(x) = \boxed{x - 6}$.
