Question

How do you plot the polar coordinate `(-2,120^o)`?

Answer 1

Please see below.

Explanation:

To plot the polar coordinate `(r,theta)`, one first draws an angle of `theta` and then moves a distance of `r` from origin.

Here we have polar coordinates as `(-2,120^@)`, in which `r=-2` a negative number.

Hence to plot the polar coordinate `(-2,120^@)`, one moves `2` units in reverse direction of the angle of `120^@`, as shown below.