#### Answer

(a) We can see the point plotted on the graph below.
(b) We can write two pairs of polar coordinates for this point:
$(3, 0^{\circ})$
$(-3, 180^{\circ})$

#### Work Step by Step

$(3, 0)$
(a) We can see the point plotted on the graph below.
(b) $r = \sqrt{(3)^2+(0)^2} = 3$
Since the point is on the positive x-axis, the angle $\theta = 0^{\circ}$
We can write two pairs of polar coordinates for this point:
$(3, 0^{\circ})$
$(-3, 180^{\circ})$