Answer
$4x+16=y$
Work Step by Step
In order to find the inverse of a function, we first switch f(x) with y to obtain:
y=1/4x -4
Because it is an inverse function, that means that we switch x and y and then put the equation in terms of y:
$x=1/4 y -4 \\\\ x+4= 1/4y \\\\ 4x+16=y$
