Complex Numbers Quiz

What is the imaginary unit denoted by?

• i

• k

• j

• m

What is the real part of the complex number 13.2i + 1?

• 1

• 13.2

• -1

• 0

What is the imaginary part of the complex number 21 - 14i?

• -14

• 14

• 21

• 0

Which of the following is a complex number?

• 5

• 3i

• 2 + 3i

• 0

What type of number is 10.2?

• Complex

• None

• Real

• Imaginary

What is the real part of the complex number 17i?

• 17

• 0

• -17

• 1

Which of the following is an imaginary number?

• 5

• 4 + 2i

• 3i

• 2

What is the standard form of the complex number 7i - 2?

• 7 - 2i

• 2 - 7i

• -2 + 7i

• 7i - 2

What is the imaginary part of the complex number 9i?

• 9

• 0

• -9

• 1

Which of the following is a real number?

• -3i

• 3

• 4 + 2i

• 5i