Find All the Complex Roots

Find All the Complex Roots

11th Grade

9 Qs

quiz-placeholder

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Find All the Complex Roots

Find All the Complex Roots

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Hard

CCSS
HSN.CN.A.3, HSA-REI.B.4B, HSA.APR.B.3

+2

Standards-aligned

Created by

Anthony Clark

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Given one complex zero use the conjugate root theorem to find another.  Zero is 7-5i

-7+5i

7-5i

-7-5i

7+5i

Tags

CCSS.HSN.CN.A.3

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

x = {-4, -1}

x = {-1, -4}

x = {2 + i, 2 - i}

x = {-2 + i, -2 - i}

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

x = {-3 + 2i, -3 - 2i}

x = {7, 6}

x = 2 ± i√3

No solution

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve for x: 3x2 - 6x + 6 = 0

x = 1 ± i

x = 3, -6

x = 4.8, 2.7

Undefined

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If a + bi is a root of a polynomial, then _______ is also a root.

i2

a - bi

a + bi

-i2

Tags

CCSS.HSN.CN.C.9

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

One root is 2 - 3i. What would another root be?

2 - 3i

-2 + 3i

-2 - 3i

2 + 3i

Tags

CCSS.HSN.CN.A.3

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the other root


2i

i

i2

-2i

-1

Tags

CCSS.HSN.CN.A.3

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