Unit 2 Linear Equations Test Review

Scarlett is drawing a line on her graph that passes through the point (8, -4) and has a slope of 1/2. Which equation could be the one Scarlett wrote?

• y = (1/2)x

• y = (1/2)x - 8

• y = (1/2)x - 4

• y = (1/2)x + 8

Avery and Priya are on a treasure hunt! Avery starts at the point (-3, 4) and Priya is at (2, -6) on their map. Which equation represents the path of the secret line connecting them?

• y = (-1/2)x - 5

• y = (-1/2)x - 1

• y = -2x - 2

• y = -2x - 10

Grace and Henry are working together on a math puzzle! They come across these two mysterious lines:

2x + 3y = 9
4x - 6y = 18

Which statement best describes the relationship between Grace and Henry's lines?

• The lines are parallel.

• The lines are perpendicular.

• The lines are not parallel or perpendicular.

Tags

CCSS.HSG.CO.A.1

Arjun and Isla are drawing lines on graph paper. Arjun draws the line y = (1/4)x + (1/8). Isla wants to draw a line that is parallel to Arjun's line. Which equation could Isla use for her line?

• y = (1/4)x + (1/8)

• y = (1/4)x - (1/4)

• y = (1/8)x + (1/4)

• y = (1/8)x - (1/8)

Nora is drawing a line on her graph paper that is parallel to the line y = 3x - 5. She wants her line to pass through the point (1, 5). Which equation did Nora use for her new line?

• y = 3x + 2

• y = 3x - 14

• y = -(1/3)x + (8/3)

• y = -(1/3)x + (16/3)

Grace is drawing lines on her graph paper. She sketches the line y = -(2/3)x - 4 and challenges her friend Lily to draw a line that is perpendicular to it. Which equation could Lily use for her line?

• y = (3/2)x + 7

• y = -(3/2)x + 7

• y = (2/3)x - 7

• y = -(3/2)x - 7

Grace and Ethan are drawing lines on a giant whiteboard. Grace draws the line given by y - 3 = 7 - (9/2)x. Ethan wants to draw a line that is perfectly perpendicular to Grace's line. What should be the slope of Ethan's line?

• 9/2

• -2/9

• 2/9

• -9/2

Avery and Isla are drawing graphs in math class! Can you help them find the x-intercept for the graph of 2y + 4x = 6?

• (-3, 0)

• (3/2, 0)

• (3/4, 0)

• (3, 0)

Harper and Aiden are drawing a line on the board with the equation 4x + 5y = 20. Can you help them find the y-intercept of their line? What point is it?

• (0, 4)

• (0, 5)

• (4, 0)

• (5, 0)

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Henry and Ava are solving math puzzles together! They come across the equation 6x + 9y = -81. Can you help them find the slope of this equation?

• -9

• -3/2

• -2/3

• 9

Tags

CCSS.8.EE.B.5