Powers of I and Complex Numbers

What variable do we use to represent imaginary numbers?

• x

• y

• m

• i

• i

• -1

• -i

• 1

• i

• -1

• -i

• 1

• 1
  

• i
  

• -1

• -i

• 1

• i

• -1

• -i

• -i

• i

• 1

• -1

• i

• 5i

• -i

• -5i

• True

• False

Express the following in simplest a + bi form.

• -4i

• 14i

• 4 - 10i

• 4 + 10i

If you plotted the complex number -2 + 5i, what quadrant would it be in?

• I

• II

• III

• IV