Identify Real and Complex Parts

Two complex numbers are added. How do we do this?

• We add up all 4 numbers you see.

• We add up all the big numbers.

• We add only the real parts. Because we cannot see the imaginary parts.

What is the "real part" of the complex number (-2+7i)?

• 2

• -2

• 7i

• -7i

Write the complex number shown in the graph.

Identify the complex number from the graph.

• 5 + 2i

• 2 + 5i

• 5 - 2i

• -2 - 5i

What is the "imaginary part" of the complex number (3-4i)?

• 3

• -3

• -4i

• 4i

Label the REAL part __ and the IMAGINARY part __ of the complex number.

b

a

IMAGINARY part

REAL part

Label the REAL part __ and the IMAGINARY part __ of the complex number.

b

a

IMAGINARY part

REAL part

Label the REAL part __ and the IMAGINARY part __ of the complex number.

b

a

REAL part

IMAGINARY part

What is the "real part" of the complex number (-4-3i)?

• -4

• 4

• -3i

• 3i

What is the "imaginary part" of the complex number (-2+7i)?

• 2

• -2

• 7i

• -7i