Parallel and Perpendicular Lines

Slopes of parallel lines are...

• opposite reciprocals

• opposites

• identical

• reciprocals

Tags

CCSS.HSG.GPE.B.4

CCSS.HSG.GPE.B.5

Slopes of perpendicular lines are...

• opposite reciprocals

• opposites

• identical

• reciprocals

Tags

CCSS.HSG.GPE.B.5

What slope is perpendicular to:  
m = 5/8

• -5/8
• 5/8
• -8/5
• 8/5

Tags

CCSS.8.EE.B.6

What slope is parallel to:

m = 4

• 4

• -1/4

• -4

• 1/4

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.GPE.B.5

What slope is perpendicular to:

m = -3

• -3

• -1/3

• 1/3

• 3

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.GPE.B.5

Are these lines parallel, perpendicular, or just intersecting (but not perpendicular)?

 $y=6x+2$  $y=-6x-2$   

• Parallel

• Perpendicular

• Intersecting (but not perpendicular)

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.GPE.B.5

Select all that are true.

• Parallel lines never intersect.

• Parallel lines intersect at a right angle.

• Perpendicular lines never intersect.

• Perpendicular lines intersect at a right angle.

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.CO.C.9

Determine the equation of a line perpendicular to y=-3x-2 and going through the point (9, 2), in slope-intercept form.

• $y=\frac{1}{3}x-3$

• $y=-\frac{1}{3}x-9$

• $y=\frac{1}{3}x-1$

• $y=-3x-9$

Tags

CCSS.HSG.GPE.B.5

Which of the following lines is PARALLEL to the graph of y = -6x + 3 and goes through the point (-1,4)?

• y=1/6x +25/6

• y = 1/6x + 4

• y = -6x - 2

• y = -6x + 4

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.GPE.B.5

Write an equation that is parallel to 
y = -2x + 4
and runs through the point (-3, 2 )

• y = - 2x - 4
• y = - 2x - 8
• y = - 2x + 4

Tags

CCSS.HSG.GPE.B.5