Complex Numbers and Equations
Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Thomas White
FREE Resource
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19 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What must be true for two complex numbers to be considered equal?
Their imaginary parts must be equal.
Their real parts must be equal.
Both their real and imaginary parts must be equal.
Their magnitudes must be equal.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the equation x + i y + 6 - 9 i = 6 - 10 i, what is the value of x?
6
1
0
-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the equation x + i y + 6 - 9 i = 6 - 10 i, what is the value of y?
-1
-9
0
1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving the equation 2x - i y + y - x i = 1 - 5 i?
Combine like terms.
Add 5 to both sides.
Equate the real parts and the imaginary parts separately.
Multiply both sides by i.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the equation 2x + y = 1 and -y - x = -5, what is the value of x?
1
4
-4
0
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the equation 2x + y = 1 and -y - x = -5, what is the value of y?
9
0
-9
5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving the equation 2x - 1 + (x + y)i = y - 6 + (2y - 4)i?
Multiply both sides by 2.
Equate the real parts and the imaginary parts separately.
Add 6 to both sides.
Subtract 1 from both sides.
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