Complex Numbers- Cartesian & find Modulus Argument

Complex Numbers- Cartesian & find Modulus Argument

10th - 12th Grade

19 Qs

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Complex Numbers- Cartesian & find Modulus Argument

Complex Numbers- Cartesian & find Modulus Argument

Assessment

Quiz

Mathematics

10th - 12th Grade

Practice Problem

Medium

CCSS
HSN.CN.B.4, HSN.CN.A.1, HSN.CN.C.8

+6

Standards-aligned

Created by

Kathryn Mendenhall

Used 13+ times

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19 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

In the complex plane, the horizontal axis if referred to as the ____ axis and the vertical axis is called the _____ axis

real, imaginary
imaginary, real
complex, standard
standard, cartesian

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Where is point C located?

2 + i

-3

2i

-1 - i

Tags

CCSS.HSN.CN.B.4

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Find the right Argand's Diagram for z = 4 - 8i

Media Image
Media Image
Media Image
Media Image

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

What complex number is shown on the graph?

(-2,-3)

-2-3i

2-3i

3i-2

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.B.5

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Match the expression to the graph shown in the complex plane.

(4,0)

4 + 4i

-4(i2)

4i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.CN.B.4

CCSS.HSN.CN.B.5

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Simplify:
(2 - 3i)(5 + 4i)

22 - 7i
22 + 7i
22 - 7i2
22 + 7i2

Tags

CCSS.HSN.CN.C.8

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is the complex conjugate of 4-3i?

A. 1/(4-3i)

B. 1/(4+3i)

C. -4 + 3i

D. 4 + 3i

Answer explanation

A conjugate of a complex number will have the same terms and an opposite +/- between them:


x = a + bi and it's conjugate is x = a - bi

Tags

CCSS.HSA.APR.A.1

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