Parallel and Perpendicular Lines

Slopes of parallel lines are...

• opposite reciprocals.
• opposites.
• the same.

• always 7.

Tags

CCSS.8.EE.B.5

Slopes of perpendicular lines are...

• opposite reciprocals.
• opposites.
• identical.
• always 7.

Tags

CCSS.8.EE.B.6

What slope is parallel to:  
m = 4

• 4
• -1/4
• -4
• 1/4

Tags

CCSS.8.EE.B.5

What slope is perpendicular to:  
m = 3

• -3
• -1/3
• 1/3
• 3

Tags

CCSS.HSG.CO.A.1

What slope is perpendicular to:  
m = 5/8

• -5/8
• 5/8
• -8/5
• 8/5

Tags

CCSS.8.EE.B.6

m= 1/18

Which slope is perpendicular?

• m= -1/18

• m= 18

• m= -18

• m= 1/18

Tags

CCSS.8.EE.B.6

m=1/3

Which slope is parallel?

• m= 1/3

• m= 9

• m= 3

• m= -3

Tags

CCSS.8.EE.B.6

A line is parallel to   y = 2x - 7.
What is it's slope?

• -2
• 1/2
• -1/2
• 2

Tags

CCSS.8.EE.B.5

A line is perpendicular to    y = 2x - 7.
What is the slope of this line? 

• -2
• 1/2
• -1/2
• 2

Tags

CCSS.8.EE.B.6

y = 3x +2
y = 3x - 3
These lines are...

• Parallel
• Perpendicular
• Neither
• The same line

Tags

CCSS.HSG.CO.A.1