Question

How do you plot the number `1+5i`?

Answer 1

See below:

Explanation:

When graphing complex numbers, we take the same 2-D graph that we use for graphing `x,y` relationships, (like the line equation `y=2x+3`) and change the axes. What was the `x` axis becomes the Real Number axis and what was the `y` axis becomes the Complex Number axis.

We are therefore looking to move 1 unit to the right and 5 units up.

And now we can plot:

graph{(x-1)^2+(y-5)^2-.01=0 [-1,4,4,7]}