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Author: nsharp1
No. Questions: 10
Created: Jul 9, 2019

# The Complex Plane

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For the graph below, let x represent the real axis and y the imaginary axis. Refer to this for the following questions.
Grade 11 Complex Numbers CCSS: HSN-CN.B.4
A.
Which of the following complex numbers is represented by point A?
1. $6 - 7i$
2. $-7 -7i$
3. $-7 + 6i$
4. $6+6i$
Grade 11 Complex Numbers CCSS: HSN-CN.B.4
B.
Which of the following complex numbers is represented by point B?
1. $7 - 6i$
2. $-6 + 7i$
3. $-6 - 6i$
4. $-7 - 6i$
Grade 11 Complex Numbers CCSS: HSN-CN.B.4
C.
Which of the following points represents the complex number $3 - 2i ?$
1. E
2. I
3. A
4. This number is not represented by any point given.
Grade 11 Complex Numbers CCSS: HSN-CN.B.4
D.
Which of the following points represents the complex number $-5 + 9i ?$
1. E
2. B
3. L
4. This number is not represented by any point given.
Grade 11 Complex Numbers CCSS: HSN-CN.B.4
E.
Which of the following complex numbers does not have a corresponding point shown on the given graph?
1. $8$
2. $9 + 9i$
3. $-3 + 4i$
4. $-7 -7i$
Grade 11 Complex Numbers CCSS: HSN-CN.B.4
F.
Which of the following complex numbers is represented by the point C?
1. $sqrt(85) \ (cos49.4° + i sin49.4°)$
2. $7 \ (cos45° + i sin45°)$
3. $sqrt(85) \ (cos40.6° + i sin40.6°)$
4. $6 \ (cos45° + i sin45°)$
Grade 11 Complex Numbers CCSS: HSN-CN.B.4
G.
Which of the following complex numbers is represented by the point J?
1. $8 \ (cos180° + i sin180°)$
2. $8 \ (cos0° + i sin0° )$
3. $64 \ (cos(180° + i sin180°)$
4. $-8 \ (cos0° + i sin0°)$
Grade 11 Complex Numbers CCSS: HSN-CN.B.4
Grade 11 Complex Numbers CCSS: HSN-CN.B.4
Grade 11 Complex Numbers CCSS: HSN-CN.B.4
J.
Which of the following complex numbers does not have a corresponding point shown on the given graph?
1. $8 \ [ \ cos(-90°) + i sin(-90°) \ ]$
2. $9sqrt(2) \ [ \ cos(45°) + i sin(45°) \ ]$
3. $sqrt(13) \ [ \ cos(-33.7°) + isin(-33.7°) \ ]$
4. $4sqrt(5) \ [ \ cos(-46.6°) + isin(-46.6°) \ ]$