Intro Proportional Relationships

At the station, each liter of gas costs $3, there's a promotion that every beverage you purchase you save $ .20 on gas. Is you total savings on gas proportional to the number of beverages you purchase?

• YES

• NO

Does the table represent a proportional relationship?

• Yes.

• No.

Jane wants to triple her lemonade recipe. For two drinks, she mixes 3 lemons with 2 cups of water. What will she need to triple her recipe?

• 6 lemons, 4 cups of water

• 8 lemons, 6 cups of water

• 9 lemons, 6 cups of water

• 12 lemons, 8 cups of water

Does the table represent a proportional relationship?

• yes

• no

Does the table represent a proportional relationship?

• yes

• no

What is the equation y=kx for the table?

• y=1/3x

• y=3x

• y=5x

• y=1/5x

What is the constant of proportionality?

• 45

• 50

• 27

• 1

Determine the constant of proportionality for the table. Express your answer as y = kx

• y = 1/2x

• x = 1/2y

• y = 2x

• k = x

Does this equation represent a proportional relationship?

• Yes

• No

Which statement best describes the relationship between x and y in the table?

• Proportional

• Not Proportional