

Parallel and Perpendicular Lines Review
Presentation
•
Mathematics
•
9th Grade
•
Medium
+3
Standards-aligned

Joseph Zahrn
Used 636+ times
FREE Resource
6 Slides • 13 Questions
1
Parallel and Perpendicular Lines Review

2
Slope Intercept Form
m is the slope
b is the y-intercept
3
Multiple Choice
Which of the following is written in slope-intercept form?
2y+3x=5
y=2+x+1
y=21x−3
4
Multiple Choice
What is the slope of
y=3x+5 ?3
y
5
x
5
Multiple Choice
What is the y-intercept of
y=3x+53
x
5
y
6
Parallel Lines
Have the same slope
Have different y-intercepts
Never intersect
7
Multiple Choice
Parallel lines have....
Same slope and the same y-intercept
Different lopes and the same y-intercept
Same slope and different y-intercepts
Different slopes and different y-intercepts
8
Multiple Choice
What slope is parallel to a slope of 2?
1
−21
21
2
9
Multiple Choice
Which of the following equations is parallel to y=21x+5 ?
y=−21x−3
y=−2x+4
y=21x−3
y=21x+5
10
Multiple Choice
If Jaid and Toni both made 5 dollars an hour but Jaid started with 6 dollars and Toni started with 10 dollars. Will they ever have the same amount of money?
Yes
No
11
Perpendicular Lines
Have opposite reciprocal slopes
Can have the same y-intercept
Intersect at a 90 degree angle
12
Opposite Reciprocal
Flip the numbers
Flip the sign
13
Multiple Choice
The slopes of perpendicular lines are...
Same
Opposite Reciprocals
Opposite
Reciprocals
14
Multiple Choice
The opposite reciprocal to 25 is?
52
−25
25
−52
15
Multiple Choice
Which slope would be perpendicular to a slope of 2 ?
2
21
−21
−2
16
Multiple Choice
Which equation is perpendicular to y=32x−4 ?
y=−23x+4
y=−32x+4
y=32x−4
y=23x−4
17
To Review
Parallel lines have the same slope but different y-intercepts
Perpendicular lines have opposite reciprocal slopes and can have the same y-intercept
18
Multiple Choice
Are the given lines parallel, perpendicular, or neither?
y=21x+2 and y=21x−4
Parallel
Perpendicular
Neither
19
Multiple Choice
Are the given lines parallel, perpendicular, or neither?
y=2x+3 and y=−21x+3
Parallel
Perpendicular
Neither
Parallel and Perpendicular Lines Review

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