\({1\over f(x)}\)
The graph of f and \({1 \over f}\) intersect where \(f(x)=\pm 1\)
x intercepts of the function f become vertical intercepts of \({1 \over f}\)
Local maxima of f become local minima of \({1 \over f}\)
Local minima of f become local maxima of \({1 \over f}\)
MY PROGRESS
How much of 1 over function have you understood?