Complex Numbers

Complex Numbers

9th - 12th Grade

12 Qs

quiz-placeholder

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Assessment

Quiz

Mathematics

9th - 12th Grade

Hard

CCSS
HSN.CN.A.3, HSN.CN.A.1, HSA.APR.A.1

+3

Standards-aligned

Created by

Sharon Moehle

Used 6+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the standard form for a complex number?

-8i
a + bi
bi + a
-8i + 8

Tags

CCSS.HSN.CN.A.1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify:
√-36

6
-6
-6i
6i

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Simplify:
√-108

3i√6
3i√20
6i√3
20i√3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the conjugate of i + 4?

i + 4
i - 4
-i-4
-i+4

Tags

CCSS.HSN.CN.A.3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the conjugate of -8i?

-8i
8i

Tags

CCSS.HSN.CN.A.3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the conjugate of -2i + 7

-2i - 7
2i - 7
-7 + 2i
7 + 2i

Tags

CCSS.HSN.CN.A.3

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Add/Subtract complex numbers:

(7 + 2i) - (-12 - 4i)

-5 - 2i

19 - 2i

-5 + 6i

19 + 6i

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