Algebra 1 Friday Quiz: Imaginary and Complex numbers

Algebra 1 Friday Quiz: Imaginary and Complex numbers

10th - 12th Grade

16 Qs

quiz-placeholder

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Algebra 1 Friday Quiz: Imaginary and Complex numbers

Algebra 1 Friday Quiz: Imaginary and Complex numbers

Assessment

Quiz

Created by

Juan Sandoval

Mathematics

10th - 12th Grade

1 plays

Easy

16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What does i=  ?
1
-1
√-1
√1

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Multiply: 
(4 – 3i)(-7 – 2i)
A.  -23 + 13i
B.  -23 - 29i
C.  -34 + 13i
D.  -34 - 29i

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify:

(10 + 15i) - (48 - 30i)

58 - 45i

58 - 15i

-38 - 15i

-38 + 45i

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the sum.

(5 - 2i) + (-7 + 8i)

-2 + 6i

12 + 6i

-35 - 16i2

-35 - 16i

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Multiply:

(2 - 5i)(2 + 5i)

29

4 - 25i

25 - 10i

-21

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

(2i)(3i)
5i
-5
6i2
-6

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify √-45
3i√5
-3i√5
-i√45
45i

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