Constant or Proportionality

Write the equation for the table.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Based on this table, constant of proportionality is (a)   . The equation is (b)   .

• k=1/4

• k=2

• k=4

• k=6

• y=1/3x

• y=2x

• y=1/4x

Tags

CCSS.7.RP.A.2B

Noah is calculating the cost of gasoline for his car. He finds that the cost (y) is directly proportional to the amount of gasoline (x) he buys. If the equation representing this scenario is y=3.8x, identify the constant of proportionality.

Tags

CCSS.7.RP.A.2B

Maya is selling lemonade at a stand. If she sells each cup for 5 times the cost of making it, what is the constant of proportionality in the equation y=5x, where y is the selling price and x is the cost of making one cup of lemonade?

• k=5

• y=5x

• k=1/5

• y=1/5x

Tags

CCSS.7.RP.A.2B

Identify the constant of proportionality

• k = 1/90

• k = 1/30

• k = 90

• k = 30

Tags

CCSS.7.RP.A.2B

Identify the constant of proportionality.

• k = 2x

• k = 2

• k = 4

• none

Tags

CCSS.7.RP.A.2B

What is the constant of proportionality?

• 7

• 14

• 10

• 21

Tags

CCSS.7.RP.A.2B

Name the constant of proportionality.

• 20

• 40

• 16

• 35

Tags

CCSS.7.RP.A.2B

Identify the unit rate (scale factor) in this equation.

• 2x

• 2

• 4

• none

Tags

CCSS.7.RP.A.2D

What is the constant of proportionality?

• k=3

• y=3x

• k=1/3

• y=1/3x

Tags

CCSS.7.RP.A.2B