Slope Parallel and Perpendicular Lines

Find the slope:

• 3/4

• 4/3

• -3/4

• -4/3

The slopes of parallel lines are...

• the same

• opposite

• always different

Are these two lines parallel, perpendicular or neither?

• Parallel

• Perpendicular

• Neither

Are these two lines parallel, perpendicular or neither?

• Parallel

• Perpendicular

• Neither

Match the following to its perpendicular slope

• 3/2

• -7/5

• -4/5

• 5/4

• 5/7

• -2/3

• -4/15

• 15/4

• Parallel

• Perpendicular

• Neither

Two lines that are perpendicular lines have ...

• Slope that is opposite reciprocals

• No Slope

• Slope that is the same

• none of the above

What slope is parallel to:  
m = 4

• 4

• -1/4

• -4

• 1/4

What slope is perpendicular to:  
m = 5/8

• -5/8

• 5/8

• -8/5

• 8/5

Find the slope

• -5/3

• -3/5

• 5/3

• 3/5