Chapter 10 - Conics, Parametric Equations, and Polar Coordinates - Review Exercises - Page 744: 82

$$r = 4\left( {\sec \theta - \cos \theta } \right)$$

$$\eqalign{ & r = 4\left( {\sec \theta - \cos \theta } \right) \cr & {\text{Using a graphing utility to graph the polar equation }}\left( {{\text{Geogebra}}} \right) \cr} $$