Parallel and Perpendicular

Slopes of parallel lines are...

• opposite reciprocals.
• opposites.
• the same.
• always 7.

Slopes of perpendicular lines are...

• opposite reciprocals.
• opposites.
• the same.
• always 7.

y = -2/3x + 2
y = 3/2x + 9
These lines are...

• Parallel
• Perpendicular
• Neither

What slope is perpendicular to:  
m = 5/8

• -5/8
• 5/8
• -8/5
• 8/5

y = 6x + 2
y = -6x + 2
These lines are...

• Parallel
• Perpendicular
• Neither

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

• Parallel
• Perpendicular
• Neither
• The same line

Match the following

• Parallel lines

• 
• Intersecting lines

• 
• Perpendicular lines

• 

Match the following opposite reciprocal

• -4/5

• -7/5

• -4/15

• -2/3

• 3/2

• 15/4

• 5/7

• 5/4

What do we call lines that will never intersect?

• Parallel

• Perpendicular

• Intersecting

These lines are parallel because they will never touch

• true

• false