Exploring Slopes of Parallel and Perpendicular Lines

What symbol is used to represent parallel lines?

• A circle

• A single straight line

• A large upside-down T

• Two tall L's

What is a key characteristic of parallel lines?

• They never intersect

• They have different slopes

• They form a right angle

• They intersect at one point

If a line has a slope of 2/2, what is its simplified slope?

• 2

• 4

• 1

• 0.5

What is the slope of line M if it rises 2 units and runs 2 units?

• 2

• 0.5

• 4

• 1

What is the slope of line P if it goes down 2 units and runs 2 units?

• -1

• 2

• -2

• 1

What do you get when you multiply the slopes of two perpendicular lines?

• 0

• 1

• -1

• 2

What is the negative reciprocal of a slope of 1?

• 1

• -1

• -2

• 0

What is the slope of a line perpendicular to a line with a slope of 1/2?

• -1/2

• 1

• -2

• 2

What is the relationship between the slopes of parallel lines?

• They are equal

• They are negative reciprocals

• They are perpendicular

• They intersect

What is the slope of a line that rises 1 unit and runs 2 units?

• -2

• -1/2

• 1/2

• 2