Direct Variation Practice

Write an equation for this relationship.

• y=4x
• y=1/8x
• y=1/4x
• y=8x

Tags

CCSS.6.EE.C.9

Write the equation for the table given.

• y = 1/3x
• y = 3x
• y = 1/2x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.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.HSF-LE.A.1B

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

• y=32x
• y=16x
• y=2x
• y=(1/2)x

Tags

CCSS.8.EE.B.6

CCSS.8.F.B.4

 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.8.EE.B.6

CCSS.8.F.B.4

What does the Direct Variation Equation look like?

• Y= kx
• y = mx + b
• y = b
• y = x

Tags

CCSS.8.EE.B.6

CCSS.8.F.B.4

Is this proportional?
y=2x

• yes
• no

Tags

CCSS.7.RP.A.2D

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

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

Is this a direct variation?
y=2x

• yes
• no

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1

Is this a direct variation?  y =2x + 1

• Yes
• No

Tags

CCSS.8.EE.B.5