# Mini-Quiz: Imaginary Numbers

by Ron Kurtus (updated 18 January 2022)

Take this Mini-Quiz to check your understanding of the lesson material.

1. What does i6 equal?

6i

You can't raise i to the 6th power

−1

2. What does (2 + i)2 equal?

3 + 4i

5 + 4i

3 − 4i

3. What is the conjugate of x − iy?

x − iy

x + iy

ix − y

If you got all three correct, you are on your way to becoming a Champion in Algebra. If you had problems, you had better look over the material again.

Know what the terms mean

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