Quiz 1.3

How can you use slopes to determine if two lines are parallel?

• If the slopes are opposites

• If the slopes are reciprocals

• If the slopes are the same

• If their product is -1

How can you use the slopes to determine if two lines are perpendicular?

• If the slopes are the same

• If their sum is -1

• If their product is -1

• If the slopes are reciprocals

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

Mathematical Equivalence

ON

What is the slope of a line perpendicular to a line with m = 3?

(Type in the numerical value only)

Mathematical Equivalence

ON

y = -2/3x + 2
y = 3/2x + 9
These lines are...

• Parallel
• Perpendicular
• Neither

Which line is perpendicular to

y = 2x - 7 ?

• y = -2x + 8

• y = ¹/₂x - 7

• y = ^-1/₂x + 2

• y = 2x - 3

Use slope to determine if lines AB and CD are parallel, perpendicular, or neither.

A(0, 2), B(5, 4), C(1, 8), D(3, 3)

• Parallel

• Perpendicular

• Neither

Which two lines are parallel?

• Line A and Line B

• Line A and Line C

• Line B and Line C

Which two lines are perpendicular?

• Line A and Line B

• Line B and Line C

• Line A and Line C

Are the lines shown parallel. perpendicular, or neither?

• Parallel

• Perpendicular

• Neither