Parallel and Perpendicular Identification

Slopes of perpendicular lines are...

• negative reciprocals.

• opposites.

• identical.

• always 7.

What slope is parallel to:  
m = 3/4

• 4/3
• 3/4
• -3/4
• -4/3

What slope is parallel to:  
m = 4

• 4
• -1/4
• -4
• 1/4

How many points does a snowflake typically have?

• 4

• 6

• 5

• 8

What is the slope of a line perpendicular to 5?

• 5

• 1/5

• -1/5

• -5

Parallel lines cross one another, or intersect.

• true

• false

What is the slope of the line shown in the graph?

• Positive

• Negative

• Zero

• Undefined

What is the slope of a line perpendicular to -10/3

• -10/3

• 10/3

• 3/10

• -3/10

Slopes of Parallel lines are ____________?

• opposites

• reciprocals

• equal

• negative reciprocals

What would Slope Dude say (WWSDS) about the slope of this line?

• Puff puff positive

• NICE negative

• This is zero fun!

• Undefined!!!