For this case we can use the Pythagorean theorem to solve the problem.
We have then for the following complex number:
[tex]-3 + 4i
[/tex]
Using the Pythagorean theorem:
[tex] \sqrt{(-3)^2+(4)^2} [/tex]
Rewriting we have:
[tex] \sqrt{9+16} [/tex]
[tex] \sqrt{25} [/tex]
[tex]5[/tex]
Answer:
A complex number that has an absolute value of 5 is:
A)–3 + 4i