Parallel and Perpendicular Lines

Slopes of perpendicular lines are...

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

Tags

CCSS.8.EE.B.6

What slope is perpendicular to:  
m = 5/8

• -5/8
• 5/8
• -8/5
• 8/5

Tags

CCSS.8.EE.B.6

Find the equation for the line that goes through point P and is perpendicular to AB.

• y=-x+1
• y=x+2
• y=-x+1
• y=-x+2

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

Identify the slope of a line parallel to the one graphed.

• -7/3
• 3/7
• -3/7
• 7/3

Tags

CCSS.8.EE.B.6

What is the equation of a line passing through (2, -1) and parallel to the line represented by the equation y = 2x + 1?

• y = -1/2x
• y = -1/2x + 1
• y = 2x - 5
• y = 2x - 1

Find the parallel slope of a line containing the points (2, -4) and (-1, 2).

• -1/2
• 1/2
• -2
• 2

Tags

CCSS.8.EE.B.5

What slope is parallel to:  
m = 3/4

• 4/3
• 3/4
• -3/4
• -4/3

Tags

CCSS.8.EE.B.6

Find the slope of a line containing the points (2, -4) and (-1, 2).

• -1/2
• 1/2
• -2
• 2

Tags

CCSS.8.EE.B.5