# How do you plot -2 on the complex plane and write it in polar form?

Feb 27, 2016

Place a point at -2 on the real axis.
Polar form: (2, $\pi$)

#### Explanation:

The complex plane consists of an imaginary and a real axis. As one would expect, the imaginary component of a number would be placed on the imaginary axis, and the real would be placed on the real axis.

Since the term -2 has no imaginary component, it is only present on the real axis at -2.

Polar coordinates are written in the form $\left(r , \theta\right)$. Where $r$ is the magnitude of the position vector, and $\theta$ is its direction in radians or degrees relative to the positive real axis.

To show -2 in polar coordinates, $r = 2$ and $\theta = \pi \mathmr{and} 180 \mathrm{de} g$.

This would be written as $\left(2 , \pi\right)$.