Intro to Imaginary Numbers Lesson Slides: 6 Slides

6 Slides • 5 Questions

1

Intro to Imaginary Numbers

I can solve quadratic equations using square roots and imaginary numbers

2

Solve the following quadratic equation.

3

Solve the following quadratic equation.

4

Multiple Choice

Solve the following quadratic equation.

$k^2+5=41$

1

2, -2

2

4, -4

3

6, -6

4

2

5

Multiple Choice

Solve the following quadratic equation.

$n^2-6=19$

1

8, -8

2

13, -13

3

5, -5

4

62, -62

6

Solve the following quadratic equation.

7

Solve the following quadratic equation.

8

Multiple Choice

Solve the following quadratic equation.

$n^2+5=-1$

1

$i\ \sqrt[]{6}$

2

$-54,\ 54$

3

$i\ \sqrt[]{6},\ -i\ \sqrt[]{6}$

4

$3i\ \sqrt[]{6},\ -3i\ \sqrt[]{6}$

9

Multiple Choice

Solve the following quadratic equation.

$-4n^2=112$

1

$-28,\ 28$

2

$2i\ \sqrt[]{7},\ -2i\ \sqrt[]{7}$

3

$i\ \sqrt[]{23},\ -i\ \sqrt[]{23}$

4

$i\ \sqrt[]{23}$

10

Multiple Choice

Solve the following quadratic equation.

$b^2-1=-19$

1

$i\ \sqrt[]{6},\ -i\ \sqrt[]{6}$

2

$2i\ \sqrt[]{5},\ -2i\ \sqrt[]{5}$

3

$3i\ \sqrt[]{2},\ -3i\ \sqrt[]{2}$

4

$-20,\ 20$

11

Go to student.desmos.com and complete the activity "Practice: Intro to Complex Numbers"

Intro to Imaginary Numbers

I can solve quadratic equations using square roots and imaginary numbers

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