Complex Numbers

Question 1

Which expression is equivalent to ?

Revolt · Accepted Answer

4 StartRoot 5 EndRoot i

Question 2

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

Revolt · Accepted Answer

StartRoot 13 EndRoot

Question 3

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

Revolt · Accepted Answer

4 – i

Question 4

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

Revolt · Accepted Answer

StartRoot 2 EndRoot

Question 5

Which expression is equivalent to i 233?

Revolt · Accepted Answer

i

Question 6

Which of the following is equivalent to ?

Revolt · Accepted Answer

18 – 5i

Question 7

Which complex number has an absolute value of 5?

Revolt · Accepted Answer

–3 + 4i

Question 8

What is the sum of and ?

Revolt · Accepted Answer

4 StartRoot 2 EndRoot i

Question 9

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

Revolt · Accepted Answer

3 – 4i

Question 10

If the complex number x = 3 + bi and |x|2 = 13, which is a possible value of b?

Revolt · Accepted Answer

2

Complex Numbers Answers