Rates, Ratios, and Proportional Relationships Test

Is this graph proportional?

• Yes

• No

What are the two key factors to determine if the relationship is proportional?

• Graphs a straight line the begins at (0,0)

• Graphs a curvy line that begins at (0,0)

• Graphs a straight line that begins anywhere

• Graphs a curvy line that begins anywhere

Is this graph proportional?

• Yes

• No

The cost to rent a bike at Tropical Park is $25 for 1 hour. If the cost to rent a bike for 2 hours is $50 and the cost to rent a bike for 3 hours is $75, which of the following statements are true? SELECT ALL THAT APPLY

• The example shows a proportional relationship.

• The example shows a non-proportional relationship.

• The constant is $25 per 1 hour.

• The example shows a direct variation between the cost and hours to rent a bike.

Mikey is swimming a relay race. Here are his stats:

50 meters in 10 seconds150 meters in 30 seconds300 meters in 60 seconds

Is this a proportional relationship? If so, find the constant of proportionality?

• Not a proportional relationship; no constant

• It is a proportional relationship; no constant

• It is a proportional relationship; the constant is 5 meters every 1 second.

• Not a proportional relationship; the constant is 50 meters every 10 seconds.

Does this graph show a direct variation? If so, what is the constant of variation?

• Yes; the constant is $4 for every 12 apples.

• Yes; the constant is $3 for every 1 apple.

• No; no direct variation means there is no constant.

• No; the constant is $12 for every 4 apples.

Which of the following statements is true? SELECT ALL THAT APPLY

• The constant is 60 miles for every 1 hour.

• This demonstrates a direct variation between distance traveled and time.

• This demonstrates a proportional relationship.

• The graph shows that in 4 hours, 240 miles have been traveled.

• The graph shows that in 180 hours, 3 miles have been traveled.

Which of the following statements is true? SELECT ALL THAT APPLY

• The constant is $10 for every 1 picture.

• This is not a proportional relationship.

• This has a direct variation between pictures taken and the cost.

• There is no constant in this graph.

• There is no direct variation in this graph.

What is the unit rate if there are 1,760 Calories in 8 servings?

Which size yogurt has the best price per ounce?

• 6 oz

• 8 oz

• 10 oz

• 32 oz