CPM Homework Help : A2C Problem 12-69

Graph each complex number and find its absolute value. Remember that the absolute value of a complex number is the same as its distance from the origin.

$−2i$
Hint (a):
How far is this point away from $0$ on your graph?
Answer (a):
The absolute value is $2$ .

$−3 + 4i$
Hint (b):
How far is this point away from 0 on your graph? The Pythagorean Theorem will be helpful here.
Answer (b):
The absolute value is $5$ .

$−2 − 2i$
Hint (c):
Look at parts (a) and (b).

$4$
Hint (d):
Looks at parts (a) and (b).