Exploring Parallel and Perpendicular Slopes

What is the relationship between the slopes of two parallel lines?

• They are negative reciprocals.

• They are always the same.

• They are undefined.

• They are always different.

Tags

CCSS.8.EE.B.5

If two lines have slopes of 1/2, what can be said about these lines?

• They are parallel.

• They are vertical.

• They are perpendicular.

• They intersect at a right angle.

Tags

CCSS.8.EE.B.6

What is the product of the slopes of two perpendicular lines?

• Undefined

• 1

• -1

• 0

Tags

CCSS.8.EE.B.6

If the slope of one line is 3/2, what is the slope of a line perpendicular to it?

• 3/2

• -2/3

• 2/3

• -3/2

Tags

CCSS.8.EE.B.6

Why are vertical lines excluded when discussing slopes of perpendicular lines?

• They intersect at an angle other than 90 degrees.

• Their slope is undefined.

• They are always parallel.

• They have a slope of zero.

Tags

CCSS.8.EE.B.5

What is the slope of a line perpendicular to a line with a slope of -4?

• -1/4

• 4

• 1/4

• -4

Tags

CCSS.8.EE.B.6

How do you determine if two lines are parallel?

• Check if they intersect at a right angle.

• Check if their slopes multiply to 1.

• Check if their slopes are the same.

• Check if their slopes are negative reciprocals.

Tags

CCSS.8.EE.B.6

What is the slope of a line parallel to a line with a slope of 4/3?

• 3/4

• -4/3

• 4/3

• -3/4

Tags

CCSS.8.EE.B.5

What is the equation of a line perpendicular to y = 1/3x + 2 that passes through (-4, 5)?

• y = 1/3x - 7

• y = -1/3x + 7

• y = -3x - 7

• y = 3x + 7

If the slope of line AB is 4/3 and the slope of line RS is also 4/3, what is the relationship between these lines?

• They are vertical.

• They are perpendicular.

• They intersect at a right angle.

• They are parallel.

Tags

CCSS.8.EE.B.6