
Identifying Direct Variation
Presentation
•
Mathematics
•
7th - 12th Grade
•
Practice Problem
•
Hard
Dianne Saevig
Used 11+ times
FREE Resource
17 Slides • 10 Questions
1
Two ALEKs Topics:
• Identifying direct variation equations
• Identifying direct variation from ordered pairs and writing equations.
2
3
4
Multiple Choice
Is the equation below a direct variation?
If so, what is the constant of variation?
2y=5x−1
No - no constant of variation
No - k=25
Yes - k=25
Yes - k=52
No - k=52
5
6
Multiple Choice
Is the equation below a direct variation?
If so, what is the constant of variation?
−12x=6y
No - no constant of variation
No - k=−2
Yes - k=−2
Yes - k=−21
No - k=−21
7
8
Multiple Choice
Is the equation below a direct variation?
If so, what is the constant of variation?
5x−6y=0
No - no constant of variation
No - k=56
Yes - k=56
Yes - k=65
No - k=65
9
10
Multiple Choice
Is the equation below a direct variation?
If so, what is the constant of variation?
−x=10y
No - no constant of variation
No - k=−101
Yes - k=−101
Yes - k=101
No - k=101
11
12
Multiple Choice
Is the equation below a direct variation?
If so, what is the constant of variation?
y+8=−x
No - no constant of variation
No - k=−1
Yes - k=−1
Yes - k=−8
No - k=−8
13
14
Multiple Choice
Is the equation below a direct variation?
If so, what is the constant of variation?
4+7x−4=3y
No - no constant of variation
No - k=37
Yes - k=37
Yes - k=73
No - k=73
15
16
17
18
Multiple Choice
Is the following table an example of direct variation?
If so, write the equation for the direct variation.
No, no equation
No, y=2x
No, y=21x
Yes, y=2x
Yes, y=21x
19
20
Multiple Choice
Is the following table an example of direct variation?
If so, write the equation for the direct variation.
No, no equation
No, y=32x
No, y=23x
Yes, y=32x
Yes, y=23x
21
22
Multiple Choice
Is the following table an example of direct variation?
If so, write the equation for the direct variation.
No, no equation
No, y=23x
No, y=32x
Yes, y=32x
Yes, y=23x
23
24
Multiple Choice
Is the following table an example of direct variation?
If so, write the equation for the direct variation.
No, no equation
No, y=1.4x
No, y=−1.4x
Yes, y=−1.4x
Yes, y=1.4x
25
26
27
Two ALEKs Topics:
• Identifying direct variation equations
• Identifying direct variation from ordered pairs and writing equations.
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