Extra Credit U5 Lesson 2 Slope and Perpendicular Lines

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

• Their slopes are reciprocals of each other.

• Their slopes are equal.

• Their slopes have opposite signs.

• Their slopes multiply to -1.

What is the slope of line segment AB, given A(-2, 1) and B(7, 7)?

• 3/2

• -2/3

• 2/3

• -3/2

What is the slope of line segment CD, given C(1, 8) and D(7, -1)?

• 3/2

• -2/3

• 2/3

• -3/2

What is the relationship between the slopes of two perpendicular lines (neither of which is horizontal or vertical)?

• Their slopes are equal.

• Their slopes are opposite reciprocals.

• Their slopes have the same sign.

• Their slopes multiply to 1.

Segment AB has endpoints A(-2, 7) and B(4, 15). What is the slope of any line or line segment perpendicular to AB?

• 4/3

• 1/4

• -3/4

• 4

Line m has a slope of -1/2. What is the slope of a line perpendicular to line m?

• -2

• 1/2

• 2

• -1/2

A line passes through point A(-2, -4) and is perpendicular to line m, which has a slope of -1/2. At what point will this perpendicular line intersect line m?

• (0, 0)

• (1, 2)

• (2, 5)

• (3, 6)

What is the slope of segment AB with endpoints A(-2, -4) and B(2, 8)?

• 3

• -3

• 1/3

• -1/3

What is the slope of segment CD with endpoints C(-3, 3) and D(5, 1)?

• 1/4

• -1/4

• 4

• -4

Are segments AB and CD perpendicular, given that the slope of AB is 3 and the slope of CD is -1/4?

• Yes, because their slopes are negative reciprocals.

• No, because their slopes are not negative reciprocals.

• Yes, because their slopes are equal.

• No, because their slopes are not equal.