Writing Equations & Slopes of Parallel and Perpendicular Lines

What is the equation of a line whose slope is -3 and whose y-intercept is 4?

• y = -3x + 4

• y = 3x - 4

• y = -4x + 3

• y = 4x - 3

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Fill in the blank: The equation of a line parallel to the x-axis and passing through the y-axis at 5 is y = ____.

• A) 5

• B) 0

• C) -5

• D) x + 5

Fill in the blank: The equation of a line parallel to the y-axis and passing through the point (3,5) is x = ____.

• A) 3

• B) 5

• C) -3

• D) -5

What is the equation of a line whose slope is -2 and which passes through (12, 1)?

• y = -2x + 25

• y = 2x - 25

• y = -2x + 1

• y = 2x + 12

Fill in the blank: The equation of a line whose slope is 15 and which passes through (-1, 6) is y = 15x + ____.

• A) 21

• B) -9

• C) 6

• D) 15

What is the equation of a line perpendicular to y = -4x + 6 and passes through (3, -5)?

• y = 1/4x - 5.75

• y = -1/4x + 5.75

• y = 4x - 5

• y = -4x + 3

Which line is parallel to the y-axis and 2.5 units to the right of it?

• x = 2.5

• y = 2.5

• x = -2.5

• y = -2.5

Which is the perpendicular bisector of (6, 4) and (14,-4) written in point slope form?

• y + 4 = -x + 10

• y - 4 = x - 10

• y + 4 = x - 10

• y - 4 = -x + 10

Fill in the blank: The line that passes through the points (4,0) and (5,6) has a slope of ____.

• A) 1

• B) 6

• C) 3

• D) 0.5

Tags

CCSS.8.EE.B.5

Are the equations parallel, perpendicular, or neither?

• Parallel
• Perpendicular
• Neither

Tags

CCSS.8.EE.B.5