Perpendicular Lines from Two Points and Slope

Slopes of perpendicular lines are...

• negative reciprocals

• opposites

• identical

• flipped

Tags

CCSS.8.EE.B.5

A line is perpendicular to    y = 2x - 7.
What is the slope of this line? 

• -2

• 1/2

• -1/2

• 2

Tags

CCSS.8.EE.B.6

These lines are.....
y = 4x
x+4y=12

• Parallel

• Perpendicular

• Neither

Tags

CCSS.HSG.CO.A.1

These lines are....
y=2
x=11

• Parallel

• Perpendicular

• Neither

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

Identify the NEGATIVE RECIPROCAL of each slope in order to form PERPENDICULAR lines.

• slope: 6

• slope: -6

• neg. reciprocal: -6

Tags

CCSS.8.EE.B.6

Line A and B are perpendicular. Given each slope of line A, determine and match it to the slope of line B.

Tags

CCSS.8.EE.B.6

A line is perpendicular to    y = 2x - 7.
What is the slope of the perpendicular line? 

m=__

(Write your answer in fraction form)

Mathematical Equivalence

ON

Tags

AI.9.2.F

Identify the slope of each to create PERPENDICULAR lines.

• neg. reciprocal: -7

• slope: -6

• slope: 7

Tags

CCSS.8.EE.B.6

Slopes of perpendicular lines are...

(a)  

• opposite reciprocals.

• negatives.

• identical.

• always fractions.

Tags

CCSS.8.EE.B.5