Graph Complex Numbers

To graph a complex number we use axes similar to our familiar rectangular coordinate system. Now the horizontal axis is the real axis, and the vertical axis is the imaginary axis. Such a coordinate system defines what is called the complex plane. Real numbers are graphed as points on the horizontal axis; pure imaginary numbers are graphed as points on the vertical axis.

To plot a complex number in the complex plane, simply locate a point with a horizontal coordinate of a and a vertical coordinate of b.

Q. Plot the complex numbers and (2 + 3i), (-1 + 2i), (-3 - 2i), and (1 - 3i).