Parallel Perpendicular Coincident

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

• are Parallel
• are Perpendicular
• Coincide
• Intersect

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

• are Parallel
• are Perpendicular
• Intersect
• Coincide

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

• are Parallel
• are Perpendicular
• Coincide
• Intersect

y = 3/2x + 2
y = 3/2x + 2
These lines ...

•  are Parallel
• are Perpendicular
• Intersect
• Coincide

y = 5/7x +2
y = 5/7x - 30
These lines ...

• are Parallel
• are Perpendicular
• Coincide
• Intersect

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

• -2
• 1/2
• -1/2
• 2

What slope is parallel to:  
m = 4

• 4
• -1/4
• -4
• 1/4

What slope is parallel to:  
m = 3/4

• 4/3
• 3/4
• -3/4
• -4/3

What slope is perpendicular to:  
m = 3

• -3
• -1/3
• 1/3
• 3

What slope is perpendicular to:  
m = 5/8

• -5/8
• 5/8
• -8/5
• 8/5