# How do you plot 5i?

Feb 2, 2018

I tried this:

#### Explanation:

We can use the Complex Plane (aka, Argand-Gauss Plane) where on the horizontal axis you plot the real parts of a complex number while on the vertical one you plot the coefficient of the imaginary part.
So in your case you have a complex number in the form:
$z = 0 + 5 i$
the real part is zero while the imaginary is $5$.
You get:

The dot represents your complex number on the Complex Plane.

Feb 2, 2018

It's just a vertical vector along the yy axis with 5 measures long.

#### Explanation:

You have the x dimension for the real part and the y dimension for the imaginary part. If the real part is zero, your value is along the y axis graph{100000x [-5, 5., 0, 5]} .