Exploring Parallel and Perpendicular Slopes of Lines

What is the relationship between the slopes of parallel lines?

• They have opposite slopes.

• They have the same slope.

• They have undefined slopes.

• They have zero slopes.

What does it mean for two lines to have opposite reciprocal slopes?

• They have zero slopes.

• They have the same slope.

• They have slopes that are negative reciprocals of each other.

• They have undefined slopes.

If one line has a slope of 2, what must be the slope of a line perpendicular to it?

• 2

• -2

• 1/2

• -1/2

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

• -3

• 3

• -1/3

• 1/3

Given the points A(2, 3) and B(4, 7), what is the slope of the line AB?

• 2/3

• 2

• 4

• 1/2

If the slope of line AB is -1/3, what is the slope of a line perpendicular to AB?

• -1/3

• 1/3

• -3

• 3

What is the slope of a line passing through points C(-1, 6) and D(2, 3)?

• -1/3

• 1

• -1

• 1/3

What is the slope of a vertical line?

• -1

• Undefined

• 0

• 1

What is the slope of a horizontal line?

• -1

• Undefined

• 0

• 1

What happens when you try to divide by zero while calculating the slope?

• You get a zero slope.

• You get a negative slope.

• You get an undefined slope.

• You get a positive slope.