Name:
Name: _____________________________
Proportional Relationships
Directions: Circle the letter of the best answer.
1. What is the constant of variation for the equation 10y = -x?
A. -10
B. -1
C. [pic]
D. 10
2. What is the constant of variation for the equation 5x - 6y = 0?
A. [pic]
B. [pic]
C. [pic]
D. [pic]
3. Which equation represents the direct variation for the data in the table?
[pic]
A. [pic]
B. [pic]
C. [pic]
D. [pic]
4. Which equation represents the direct variation for the data in the table?
[pic]
A. [pic]
B. [pic]
C. [pic]
D. [pic]
5. Which equation is a direct variation that contains the point (-8, 10)?
A. [pic]
B. [pic]
C. [pic]
D. [pic]
6. Which equation is a direct variation that contains the point (-5, -9)?
A. [pic]
B. [pic]
C. [pic]
D. [pic]
7. Which equation models the relationship described?
The perimeter of an equilateral triangle varies directly with the length s of one of the sides.
A. [pic]
B. [pic]
C. [pic]
D. [pic]
8. Which equation models the relationship described?
You earn $10.50 per hour. The amount you earn varies directly with the number of hours you work.
A. [pic]
B. [pic]
C. [pic]
D. [pic]
9. Which equation is a direct variation?
A. [pic]
B. [pic]
C. [pic]
D. [pic]
10. Which equation is a direct variation that contains the point (-8, 2)?
A. [pic]
B. [pic]
C. 8[pic]
D. [pic]
Name: _____________________________
Proportional Relationships – Answer Key
Directions: Circle the letter of the best answer.
1. What is the constant of variation for the equation 10y = -x?
A. -10
B. -1
C. [pic]
D. 10
2. What is the constant of variation for the equation 5x - 6y = 0?
A. [pic]
B. [pic]
C. [pic]
D. [pic]
3. Which equation represents the direct variation for the data in the table?
[pic]
A. [pic]
B. [pic]
C. [pic]
D. [pic]
4. Which equation represents the direct variation for the data in the table?
[pic]
A. [pic]
B. [pic]
C. [pic]
D. [pic]
5. Which equation is a direct variation that contains the point (-8, 10)?
A. [pic]
B. [pic]
C. [pic]
D. [pic]
6. Which equation is a direct variation that contains the point (-5, -9)?
A. [pic]
B. [pic]
C. [pic]
D. [pic]
7. Which equation models the relationship described?
The perimeter of an equilateral triangle varies directly with the length s of one of the sides.
A. [pic]
B. [pic]
C. [pic]
D. [pic]
8. Which equation models the relationship described?
You earn $10.50 per hour. The amount you earn varies directly with the number of hours you work.
A. [pic]
B. [pic]
C. [pic]
D. [pic]
9. Which equation is a direct variation?
A. [pic]
B. [pic]
C. [pic]
D. [pic]
10. Which equation is a direct variation that contains the point (-8, 2)?
A. [pic]
B. [pic]
C. 8[pic]
D. [pic]
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