Parallel and Perpendicular Slopes

Compare

100

Are these Parallel, Perpendicular, or Neither: 

y = 6x + 4 

y = 6x + 2.

What is parallel?

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 

y= 4x + 5

What is neither?

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 = -5x + 4 

y = 1/5x+ 30.

What is perpendicular?

What is the Slope?

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?

2x -5y = 10

What is 2/5?

500

What slope is perpendicular to the line below?

x + 2y = 4

2

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-intercept form

100

Write in slope-intercept form:

Slope = 2 

Y- intercept = 5

y = 2x + 5

200

Write in slope-intercept form: 2x + 8y =16

y = (-1/4)x +2

300

Write in slope-intercept form:

2x -6y = 18

y = (1/3)x -3

400

Using the point and slope, write in slope-intercept form: 

Point: (1,6)

Slope = 4

y = 4x + 2

500

Using two points, write in slope-intercept form:

(-5,-11) and (-2,1)

y = 4x +9

Writing parallel/perpendicular equations

400

Write an equation that passes through the point (-2, 2) and is parallel to y = 3x -6

y = 3x +8

500

Write an equation that is passes through the point    (2, 6) and is perpendicular to y = 2x -6

y = (-1/2)x + 7