Complex Numbers

Question 1

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

Revolt · Accepted Answer

III

Question 2

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

Revolt · Accepted Answer

StartRoot 2 EndRoot

Question 3

Which complex number has an absolute value of 5?

Revolt · Accepted Answer

–3 + 4i

Question 4

Which of the following is equivalent to ?

Revolt · Accepted Answer

18 – 5i

Question 5

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

Revolt · Accepted Answer

StartRoot 13 EndRoot

Question 6

What is the sum of and ?

Revolt · Accepted Answer

4 StartRoot 2 EndRoot i

Question 7

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

Revolt · Accepted Answer

2 – i

Question 8

Which expression is equivalent to ?

Revolt · Accepted Answer

4 StartRoot 5 EndRoot i

Question 9

Which complex number has a distance of from the origin on the complex plane?

Revolt · Accepted Answer

4 – i

Question 10

Which complex number is represented by the point graphed on the complex plane below?

Revolt · Accepted Answer

3 – 4i

Complex Numbers Answers