Exploring Complex Numbers in Quadratic Equations

Exploring Complex Numbers in Quadratic Equations

Assessment

Interactive Video

Mathematics

8th - 12th Grade

Practice Problem

Hard

TEKS
MATH.9-12.I.A.2, ELA.7.8A, ELA.8.8A

Standards-aligned

Created by

Emma Peterson

Used 3+ times

FREE Resource

Standards-aligned

TEKS.MATH.9-12.I.A.2
,
TEKS.ELA.7.8A
,
TEKS.ELA.8.8A

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of an imaginary concept?

Dogs

Unicorns

Rivers

Mountains

Tags

TEKS.ELA.7.8A

TEKS.ELA.8.8A

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why can't the square root of -9 be a real number?

Because multiplying a number by itself always gives a positive result

Because multiplying two negative numbers gives a positive result

Because zero is the only number that can be squared to get a negative result

Because multiplying two positive numbers gives a negative result

Tags

TEKS.MATH.9-12.I.A.2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the imaginary unit 'i' defined as?

The square root of 1

The square root of -1

The square root of 9

The square root of 0

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What symbol is used to represent the imaginary unit in engineering?

l

j

i

k

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How would you write the square root of -9 using the imaginary unit?

-3i

-3

3i

3

Tags

TEKS.MATH.9-12.I.A.2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a complex number?

A number that is neither real nor imaginary

A number that has both real and imaginary parts

A number that is only real

A number that is only imaginary

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the complex number 2 + 3i, what is the real part?

2

3

i

5

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