Question

=

Answer 1

\[
(x,y)=(r\cos\theta,r\sin\theta)
\]

Answer 2

Okay, so to find some points on \((r,\theta)\) just plug in some values for \(\theta\)

Answer 3

For example, \(\theta=0\) and \(\theta=\frac \pi2\)

Answer 4

Find the corresponding \(r\) values.

Answer 5

Do you get it?