### Home > PC3 > Chapter 11 > Lesson 11.1.2 > Problem11-22

11-22.

For $r = \cos(θ)$, make a table of at least eight values and then sketch a graph.

 $r$ $\theta$ $0$ $\sqrt2$ $\frac{\pi}{4}$ $\frac{\pi}{2}$ $\frac{3\pi}{4}$
 $r$ $\theta$ $\pi$ $\frac{5\pi}{4}$ $0$ $\frac{3\pi}{2}$ $\frac{7\pi}{4}$