Parallel and Perpendicular Slopes

Compare

100

Are these Parallel, Perpendicular, or Neither: 

y = 5x + 4 

y = -2/3x + 4.

What is Neither?

200

Are these Parallel, Perpendicular, or Neither: 

y = 5x + 4 

y = 5x - 4.

What is parallel?

300

Are these Parallel, Perpendicular, or Neither: 

y = 5x + 4 

14 - 1/5x = y

What is perpendicular?

400

Are these Parallel, Perpendicular, or Neither: 

y = 2/3x -1 

y = -2/3x + 4.

What is Neither?

500

Are these Parallel, Perpendicular, or Neither: 

y = -15/3x + 4 

y = 1/5x+ 30.

What is perpendicular?

Slope from Line

100

What slope is parallel to the line below?

y = 2x -5?

2

200

What slope is perpendicular to the line below?

y = 2x -5?

What is -1/2?

300

What slope is perpendicular to the line below?

y = -2/3x + 18?

What is 3/2?

400

What slope is parallel to the line below?

4y = 36 - 12x

-3?

500

What slope is parallel to the line below?

8y-2x=-24

What is 1/4?

Parallel, Perpendicular, or Neither?

100

Are the Slopes of Line AB and Line CD Parallel, Perpendicular, or Neither

A: (-3, 13) B: (4, -15)

C: (-2, 5) D: (1, -7)

Line AB: -4   Line CD: -4

Parallel

200

Are the Slopes of Line AB and Line CD Parallel, Perpendicular, or Neither

A: (-3, 8) B: (3, 2)

C: (7, 1) D: (5, -1)

Line AB: -1   Line CD: 1

Perpendicular

300

Are the Slopes of Line AB and Line CD Parallel, Perpendicular, or Neither

A: (5, -8) B: (-2, -10)

C: (-6, -13) D: (-2, 1)

Line AB: 2/7  Line CD: 7/2

Neither

400

Are the Slopes of Line AB and Line CD Parallel, Perpendicular, or Neither

A: (-4, 7) B: (-2, 6)

C: (2, -2) D: (-8, 3)

Line AB: -1/2   Line CD: -1/2

Parallel

500

Are the Slopes of Line AB and Line CD Parallel, Perpendicular, or Neither

A: (0, -2) B: (0, 7)

C: (3, -5) D: (6, -5)

Line AB: Undefined   Line CD: 0

Perpendicular

Perpendicular Equations

100

What slope is perpendicular to the line below?

y=3/4x + 6

-4/3

200

What slope is perpendicular to the line below?

y = 1/2x - 6?

-2

300

What slope is perpendicular to the line below?

y = -8x + 2.

1/8

400

What slope is perpendicular to the line below?

y = 0x - 5

Undefined

500

What slope is perpendicular to the line below?

y = -9/4x + 6

4/9

Slope

100

What is the slope of the line through

(8, 9) and (12, 11)

1/2

200

What is the slope of the line through 

(5, -9) and (6, -9)

zero

300

What is the slope of the line through

(-3, 5) and (-3, 8)

Undefined

400

What is the slope of the line through 

(-4, -9) and (-7,-15)

2

500

The slope of the line through (5, -8) and (c, 5) is -4/5.  What is the value of c?

-45/4 = -11.25