## Precalculus (6th Edition) Blitzer

See plot. a. $(2,\frac{8\pi}{3})$ b. $(-2,\frac{5\pi}{3})$ c. $(2,-\frac{4\pi}{3})$
We can plot the point by moving to angle $\theta=\frac{2\pi}{3}$ counterclockwise, and then to $r=2$ as shown in the figure. a. We can find another representation for the same point using the given range as $(2,\frac{8\pi}{3})$ b. We can find another representation for the same point using the given range as $(-2,\frac{5\pi}{3})$ c. We can find another representation for the same point using the given range as $(2,-\frac{4\pi}{3})$