Complex Numbers and Operations
Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Amelia Wright
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the imaginary unit 'i' equivalent to?
The square root of -1
A variable
The square root of 1
A constant number
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following pairs are like terms?
5x and -8x
3 and 3i
4i and 4
2 and 2x
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the terms inside parentheses when preceded by a negative sign?
They are divided by 2
Their signs are reversed
They are multiplied by 2
They remain unchanged
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in subtracting complex numbers?
Multiply by 'i'
Remove parentheses
Combine like terms
Add the real parts
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the subtraction of 3 - 2i from 5 + 8i, what is the result of combining the real parts?
3
2
5
8
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the subtraction of 3 - 2i from 5 + 8i, what is the result of combining the imaginary parts?
5i
10i
2i
6i
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of subtracting 3 - 2i from 5 + 8i?
2 + 10i
8 + 6i
5 + 2i
3 + 8i
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