Quarterly Assessment - Grade 9

1. In a direct variation, y = 39 when x = 3.

Find the value of y when x = 2.

• 26

• 58.5

• 3

• 2

2. The value of y varies directly with x. Which function represents the relationship between x and y if y = 14 when x = 6.

• y=20x

• y=7/3x

• y=84x

• y=3/7x

3. Y varies directly with x, and y is 84 when x is 16. Which equation represents this situation?

• y=1344x

• y=5.25x

• y=100x

• y=4/21x

4. If x and y vary directly, what is the missing value in the points (x, 4) and (-14, -8)?

• x= -7

• x = 2.3

• x = -2.3

• x = 7

5. In a direct variation, y=39 when x=3. Find the value of y when x=2.

• 26

• 58.5

• 3

• 2

6. Which of the given graphs is a direct variation?

• 
• 
• 
• 

7. In a direct variation, y = 39 when x = 3.

Find the value of y when x = 2.

• 26

• 58.5

• 3

• 2

8. y varies directly with x. When y is 16, x is 32. Which equation represents this situation?

• y = 32x

• y = 2x

• y = 16x

• y = (1/2)x

9. What ordered pair does a direct variation always go through when graphed?

• (0,0)

• (0,1)

• (1,0)

• (1,1)

10. Is this a direct variation?

• Yes

• No