Writing Equations for Parallel and Perpendicular Lines

What is the slope of a line parallel to the line with equation y = -2x + 5?

• -1/2

• 2

• -2

• 1/2

Tags

CCSS.8.EE.B.5

Given the point (3, 4) and the line equation y = -2x + 5, what is the y-intercept of the parallel line passing through the point?

• 5

• 10

• -10

• -5

What is the slope of a line perpendicular to the line with equation y = 3x + 4?

• -1/3

• -3

• 3

• 1/3

Tags

CCSS.8.EE.B.6

Given the point (6, 2) and the line equation y = 3x + 4, what is the y-intercept of the perpendicular line passing through the point?

• 4

• -4

• 2

• -2

What is the opposite reciprocal of the slope -1/2?

• 2

• -2

• 1/2

• -1/2

Tags

CCSS.8.EE.B.5

Given the point (8, 1) and the line equation y = -1/2x + 9, what is the y-intercept of the perpendicular line passing through the point?

• 9

• -15

• 15

• -9

What is the opposite reciprocal of the slope -2/3?

• -2/3

• 2/3

• -3/2

• 3/2

Tags

CCSS.8.EE.B.5

Given the point (7/4, 3/2) and the line equation y = -2/3x + 5, what is the y-intercept of the perpendicular line passing through the point?

• -7/4

• -13/2

• 13/2

• 7/4

Why is it important to use scratch paper when solving these problems?

• To impress the teacher

• To make it look neat

• To save time

• To avoid making mistakes

Tags

CCSS.8.EE.C.7B

What should you do if you need more help with the topic?

• Skip the topic

• Guess the answers

• Rewatch the video and pause it

• Ask a friend

Tags

CCSS.8.EE.C.7B