Direct Variation Practice

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

• 26
• 3
• 58.5
• 2

Tags

CCSS.7.RP.A.2B

The amount of money earned on a job varies directly to the number of hours worked. if $36 is earned for 8 hours of work, how much is earned for 30 hours of work?

• 135

• 6.667

• 1080

Tags

CCSS.7.RP.A.3

CCSS.7.EE.B.3

CCSS.7.RP.A.2

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

• 26
• 3
• 58.5
• 2

Tags

CCSS.7.RP.A.2B

Write an equation for this relationship.

• y = 4x
• y = 1/8x
• y = 1/4x
• y = 8x

Tags

CCSS.5.OA.B.3

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

• y = 32x
• y = 16x
• y = 2x
• y = (1/2)x

Tags

CCSS.7.RP.A.2C

Which of the given graphs is a direct variation?

• A
• B
• C
• D

Tags

CCSS.7.RP.A.2D

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

• y=1344x
• y=100x
• y=5.25x
• y=4/21x

Tags

CCSS.7.RP.A.2B

If y vaires directly with x and y= 12 when x= 15. What is the value of x when y= 16?

• 12.8
• 20
• 11.25
• 19

Tags

CCSS.7.RP.A.2B

The number of kilograms of water in a person’s body varies directly as the person’s mass.  A person with a mass of 90 kg contains 60 kg of water.  How many kilograms of water are in a person whose mass is 75 kg?

• 50 kg water
• 72 kg water
• 94 kg water
• 150 kg water

Tags

CCSS.6.RP.A.3C

What does the Direct Variation Equation look like?

• Y= kx
• y = mx + b
• y = b
• y = x

Tags

CCSS.7.RP.A.3

CCSS.7.RP.A.2