Introducing Proportional Relationships

True or False: A proportional relationship on a graph MUST start at (0,0)

• True

• False

The graph shows the cost C in dollars of W pounds of blueberries, a proportional relationship. Select ALL the true statements

• 1 pound of blueberries cost $2.75

• 2.75 pounds of blueberries cost $1

• 5 pounds of blueberries cost $15.50

• 12 pounds of blueberries cost $33

• The point (3,9) is on the graph of the proportional relationship

Andre rode his bike at a constant speed. He rode 1 mile in 8 minutes. Which of these equations represents the amount of time t (in minutes) that it takes him to ride a distance of d miles?

The two lines represent the amount of water, over time, in two tanks that are the same size. Which container is filling more quickly? Explain how you know.

• Container A is filling up less than Container B

• Container B is filling up more than Container A

• Container B is filling up less than Container A

5 apples weigh 0.60 kilograms.  What is the weight of 1 apple?

• 0.10

• 0.15
  

• 0.20

• 0.25

• Yes, there is a proportional relationship between C and F.

• No, there is not a proportional relationship between C and F.

• There is not enough information to determine if there is a proportional relationship between C and F.