Direct Variation Algebra

Write the equation for the table given.

• y = 1/3x

• y = 3x

• y = 1/2x

Tags

CCSS.6.EE.C.9

What does the Direct Variation Equation look like?

• y= kx

• y = mx + b

• y = b

• y = x

What is the constant of proportionality?

• 8

• 16

• 24

• 2

Tags

CCSS.7.RP.A.2B

What is the slope?

• $2/1 mile drive

• $1/2 miles driven

• 2 miles driven/$1 

• 1 mile driven/$2

Tags

CCSS.HSF.LE.B.5

Does the relationship represent direct variation?

• Yes

• No

Is the given table a direct variation? If so, what is the constant?

• Yes; 1/4

• Yes; 4

• Yes; 2

• No

Which of the given graphs is a direct variation?

• A

• B

• C

• D

Tags

CCSS.8.EE.B.5

Which is an example of direct variation?

• xy = 10

• y = 5x

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

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

• 26

• 3

• 58.5

• 2