Question

Plot 21 - 22Im987+6+54321N22H+ +-9 8 7 6 5 4 3 221++→ Re1 2 3 4 5 6 7 8 9-2-3--4-5 +-6+-7+دا من حظ ان

Answer 1

The Solution:

From the given graph, we have that the two complex numbers have only real parts. This means that:

$\begin{gathered} Z_1=4 \\ \\ Z_1=-4 \end{gathered}$

We are required to plot the graph of

$Z_1-Z_2$

So,

$Z_1-Z_2=4--4=4+4=8$

To plot the required graph, we shall locate point +8 on the real line as mark in red color in the attached graph below: