Complex Numbers

Question 1

In which quadrant is the number –14 – 5i located on the complex plane?

Revolt · Accepted Answer

III

Question 2

Which of the following is an example of a complex number that is not in the set of real numbers?

Revolt · Accepted Answer

4 + 9i

Question 3

If f(x) = x3 – 2x2, which expression is equivalent to f(i)?

Revolt · Accepted Answer

2 – i

Question 4

What is the square root of -1?

Revolt · Accepted Answer

i

Question 5

Which complex number has an absolute value of 5?

Question 6

Which of the following is equivalent to ?

Question 7

What is the sum of and ?

Question 8

If f(x) = 1 – x, which value is equivalent to |f(i)|?

Question 9

Which expression is equivalent to i 233?

Question 10

What is the distance from the origin to point A graphed on the complex plane below?

Complex Numbers Answers