Exploring Slopes of Parallel and Perpendicular Lines

What is the formula for calculating the slope between two points?

• (x2 + x1) / (y2 + y1)

• (x2 - x1) / (y2 - y1)

• (y2 - y1) / (x2 - x1)

• (y2 + y1) / (x2 + x1)

What is the relationship between the slopes of parallel lines?

• They are opposite reciprocals.

• They are the same.

• They are perpendicular.

• One is double the other.

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

• 3/4

• -3/4

• 4/3

• -4/3

If a line has a slope of 2, what is the slope of a line perpendicular to it?

• -1/2

• 1/2

• -2

• 2

Given points (6, 3) and (2, -2), what is the slope of the line passing through these points?

• -4/3

• 4/3

• -3/4

• 3/4

If two lines have slopes of 3/4 and 3/4, what is their relationship?

• Coinciding

• Perpendicular

• Parallel

• Neither

Given points (4, 2) and (5, 0), what is the slope of the line passing through these points?

• -5/2

• 5/2

• -2/5

• 2/5

If two lines have slopes of 2/5 and -5/2, what is their relationship?

• Parallel

• Perpendicular

• Neither

• Coinciding

Given points (2, -12) and (-2, -9), what is the slope of the line passing through these points?

• 2

• -2

• 1/2

• -1/2

If two lines have slopes of -2/3 and 1/4, what is their relationship?

• Perpendicular

• Coinciding

• Neither

• Parallel