Answer
The rectangular equation is, $y=\sqrt{3}x$
Work Step by Step
Using, $\tan \theta =\frac{y}{x}$, we will convert the given polar equation to the rectangular equation.
Therefore,
$\begin{align}
& \tan \frac{\pi }{3}=\frac{y}{x} \\
& y=\tan \frac{\pi }{3}x \\
& y=\sqrt{3}x
\end{align}$
And the graph is shown above.
