Parallel and Perpendicular Lines

Slopes of parallel lines are...

• negative reciprocals.

• opposites.

• the same.

• always 7.

Slopes of perpendicular lines are...

• negative reciprocals.

• opposites.

• the same.

• always 7.

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

• -2
• 1/2
• -1/2
• 2

What slope is perpendicular to:  
m = 5/8

• -5/8
• 5/8
• -8/5
• 8/5

y = 3/2x + 2
y = 2/3x + 6
These lines are...

• Parallel
• Perpendicular
• Neither

Name the angle relationship.

• Alternate Interior
• Alternate Exterior
• Corresponding
• Vertical Angles

What is the relationship of the Angles

• Alternate Interior
• Alternate Exterior
• Corresponding
• vertical 

Which pair of angles are alternate exterior angles?

• Angle 7 and Angle 4
• Angle 2 and Angle 6
• Angle 8 and Angle 1
• Angle 2 and Angle 8

Name the angle relationship.

• Consecutive Interior
• Alternate Interior
• Corresponding
• Vertical Angles

Find m ∠C.

• ∠C=116°
• ∠C=64°
• ∠C=180°
• ∠C=26°