Direct Proportion Equation

If x = 9 when y = 30, and x = 27 when y = 90, does y vary directly with x? If so, what is k equal to

• Yes, k = 10/3

• no

• Yes, k = 3/1

• Yes, k = 9

Determine the missing value in the table.

• 15

• 3

• 1/3

• 9

Tags

CCSS.5.OA.B.3

What is the algebraic equation for this table?

• y = 480x

• x = y/480

• x + 480 = y

• 480 - x = y

Tags

CCSS.6.EE.C.9

What is the unit rate in this proportional relationship?

• 60 miles/1 hour

• 120 miles/ 2 hours

• 1 mile/ 1 hour

Tags

CCSS.7.RP.A.2D

What is the Constant of Proportionality (in miles per hour) based on the table?

• 45

• 90

• 135

• 2

Tags

CCSS.7.RP.A.2B

Write an equation for this relationship.

• y=18x

• y=18.50x

• y=22.50x

• y=22x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Nancy can type 50 words per minute. Look at the table below to write an equation that matches the data.

• m=50 + w

• w= 50m

• w= 50 + m

• m= 50 - w

Tags

CCSS.6.EE.C.9

Is the graph proportional or non proportional?

• proportional

• non proportional

• both

• neither

Tags

CCSS.7.RP.A.2D

Is the graph proportional or non proportional?

• proportional

• non proportional

• both

• neither

Tags

CCSS.7.RP.A.2D

• 10

• 2.5

• 2

• 20