### Home > CALC > Chapter 9 > Lesson 9.4.2 > Problem9-128

9-128.

On your polar graph paper, complete a table and plot points for $r_1 = 4\operatorname{cos}θ$ and $r_2 = 4\operatorname{cos}(2θ)$ . What difference does the "$2θ$ " in the equation make?