SOLUTION: what is the absolute value of -8+4i?

Question 934483: what is the absolute value of -8+4i?

Found 2 solutions by Fombitz, BigToosie:
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

Answer by BigToosie(32) (Show Source): You can put this solution on YOUR website!
absolute value symbol will be denoted [ ]
-8+4i =
[z] = [-8+4i]
= sqrt (-8)^2 + (4)^2
= sqrt 64+16
=sqrt 80
= 4 sqrt 5
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