Parallel and Perpendicular Lines and Point Slope Formula

Choose ALL the lines PARALLEL to the following line: y = 2/9x - 7

• y = 2/9x + 8

• y = 9/2x -12

• -2y = 9x + 8

• 9y = 2x -18

Select ALL of the lines that are PERPENDICULAR to y = 3/4x + 9

• y = 3/4x - 3

• y = -3/4x + 9

• y = -4/3x + 8

• 3y = -4x + 5

• 4y = -3x + 7

Write the equation of a line parallel to y = -1/2x + 3 and that goes through the point (4, -1)

• y + 1 = -1/2(x - 4)

• y - 1 = -1/2(x + 4)

• y + 1 = 2(x - 4)

• y - 1 = 2(x + 4)

write the equation of a line that is parallel to y = -7x + 5 and passes through the point (0, 6)

• y = -7x + 6

• y + 0 = -7(x - 6)

• y = 6

• y + 6 = -7(x - 0)

Parallel lines have the _______ slope

Tags

CCSS.8.EE.B.6

• slope formula
  

• slope intercept
  

• standard

• point-slope

Tags

CCSS.8.EE.B.5

Slopes of Parallel lines are ____________?

• opposites

• reciprocals

• equal

• oppostie reciprocals

Tags

CCSS.8.EE.B.5

Slopes of Perpendicular lines are __________?

• Opposite

• Reciprocals

• Opposite Reciprocals

• Equal

Are the lines Perpendicular? How do you know? Line 1 runs through the point (0, -1) and (7, 1) Line 2 runs through the point (-1, 4) and (2, -5)

• Yes, their slopes are opposite reciprocals

• No, their slopes are not opposite reciprocals

• Yes, their slope are the same

• No, their slopes are not the same

Are the given lines parallel? How do you know?

• No, they do not have the same slopes.

• No, their slopes are not opposite reciprocals.

• Yes, their slopes are opposite reciprocals.

• Yes, their slopes are the same.

Tags

CCSS.8.EE.B.6