Concepts in Complex Numbers

Quiz
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the modulus of a complex number?
List of numerical values created when dealing with irrational and rational numbers
the distance between the point of origin (0,0) and the point (a,b) on the complex plane
area of an angle on a complex plane from r=θ
number chosen when completing scale evaluation of angle x and y
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the modulus of the complex number. Also state what quadrant the point would land in.
√10, Quadrant 2
√10, Quadrant 3
2, Quadrant 2
3, Quadrant 3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
z\,\, z_{1_{ } }and\, z_2\, are complex number , then\,\left|\frac{z_1}{z_2}\right|=\frac{\left|z_1\right|}{\left|z_2\right|}\, ,\, z_2\ne0
False
True
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When a complex number is drawn on the complex plane. The distance from the origin is the value of
the argument
The modulus
The real co-efficient
The imaginary co-efficient
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Refer to the above image, what is the conjugate of the denominator?
8 + 6i
6 + 8i
6 - 8i
-6 +8i
Tags
CCSS.HSN.CN.A.3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the magnitude of z = - 4 + 2i
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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