

Identifying Parallel Lines
Presentation
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Medium
Standards-aligned
Kayla Priddy
Used 46+ times
FREE Resource
5 Slides • 8 Questions
1
Identifying Parallel Lines

2
Parallel lines are lines on a graph that NEVER cross over eachother AND have the SAME EXACT slope.
3
Multiple Choice
Are any of these lines parallel?
Yes
No
4
If 2 Lines are Parallel, they MUST have the SAME SLOPE!
For example:
y = 2x - 5 and y = 2x + 3
These equations represent parallel lines because they both have a SLOPE (m) of 2.
5
Multiple Choice
Are these 2 lines parallel? Remember, slope is the number or fraction in front of the x.
Yes, they are parallel
No, they are not parallel
6
Multiple Choice
Are these 2 lines parallel?
Yes, they are parallel
No, they are not parallel
7
Counting Slope:
Rise
------
Run
8
Multiple Choice
What is the slope of this line? Start at the left point, count the RISE 1st, then count the run.
5/2
4/1
-1/4
4/3
9
Multiple Choice
What is the slope of this line? Start at the left point, count DOWN for the rise 1st, then count the run.
3/3
6
-3/4
-4
10
Slope-Intercept Form
y = mx + b
m is slope
b is y-intercept
11
Multiple Choice
Which equations represent parallel lines?
Line A: y = 4x + 13
Line B: y = 2x + 13
Line C: y = 4x + 5
A and B
A and C
B and C
12
Multiple Choice
Which equations represent parallel lines?
Line A: y = 1/2x + 1
Line B: y = 3x - 2
Line C: y = 3x + 4
A and B
A and C
B and C
13
Multiple Choice
Which lines are parallel to eachother?
Red and green
Green and blue
Red and blue
Identifying Parallel Lines

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