WorksheetsDirect Variation
Total questions: 31
Worksheet time: 2hrs 48mins
y=2x
y is 84 when x is 16. What is the constant of proportionality?
Find the value of y when x = 2.
y = 2x
Does the following equation represent a direct variation?
-8y=2x
Yes
No
Does the following equation represent a direct variation?
3x+4y = -5
Yes
No
Suppose y varies directly with x when y =10 and x=2. What is x when y = 20?
10
80
40
4
Suppose y varies directly with x when y=6 and x=18. What is y when x=72?
20
18
24
50
Determine whether the following table is the graph of a direct variation.
Direct Variation
Not Direct Variation
Determine whether the following table is a Direct Variation.
Direct Variation
Not Direct Variation
Determine whether the following table is a direct variation.
Direct Variation
Not Direct Variation
y = 7x + 3
The number of cookies Sadie can make varies directly with the amount of time she spends making the cookies. She can make 4 cookies in 1/2 hour. How many cookies can Sadie make in 5 hours?
10
2
40
2.5
In an equation, y varies directly as x varies. If y= -40 when x=5, what is the value of x when y=-4?
1/2
-1/2
1/4
40
In which table(s) does y vary directly as x? (Select all that apply.)
In an equation, y varies directly as x varies. If y = 72, when x = 12, what is the value of x when y = 48?
6
8
576
No clue
