Slope to Determine Parallel Perpendicular Lines

Given the slopes of two lines, identify whether the lines are parallel, perpendicular or neither. Slope of line #1 = 8/9 Slope of line #2 = 8/9

• Parallel

• Perpendicular

• Neither

Tags

CCSS.8.EE.B.6

Given the slopes of two lines, identify whether the lines are parallel, perpendicular or neither. Slope of line #1 = 4 Slope of line #2 = -1/4

• Parallel

• Perpendicular

• Neither

Tags

CCSS.8.EE.B.6

Given the slopes of two lines, identify whether the lines are parallel, perpendicular or neither.

• Parallel

• Perpendicular

• Neither

Tags

CCSS.8.EE.B.6

Choose the best answer to fill in the blanks. Parallel lines always have the ​ (a)   slope. Perpendicular lines have slopes that are ​ (b)   . The product of perpendicular slopes always equals ​ (c)  

• same

• negative reciprocals

• -1

• reciprocals

• 1

• different

Tags

CCSS.8.EE.B.6

What is the slope of a line parallel to the line whose equation is: -2x + y = - 7?

• -2

• 1/2

• -1/2

• 2

Tags

CCSS.8.EE.B.5

• -2

• -1/2

• 1/2

• 2

Tags

CCSS.8.EE.B.5

Mathematical Equivalence

OFF

Tags

linear point-slope form

parallel

Find the slope of a line parallel to the line below y = ½x + 4

• 1/2
  

• -1/2

• 2

• -2

Tags

CCSS.8.EE.B.5

What is the slope of any line parallel to the line 9x + 4y = 7 ?

• -9

• 7

• (9/7)

• -(9/7)

Tags

CCSS.8.EE.B.5

Slopes of parallel lines are...

• the same.

• opposite reciprocals.

• always negative.

• reciprocals.

Tags

CCSS.8.EE.B.5