Exploring Proportional vs Nonproportional Relationships

What defines a proportional relationship between two quantities?

• The quantities are always decreasing.

• The ratios or rates of the two quantities are not equal.

• The ratios or rates of the two quantities are equal.

• The quantities are always increasing.

In the example with Jasmine's cookies, what is the rate of cups of sugar per dozen cookies for the first set of data?

• 6

• 3.6

• 4

• 3.75

Why is the sugar used in Jasmine's cookies considered non-proportional?

• Because the rate of sugar per dozen cookies is constant.

• Because the rate of sugar per dozen cookies is not equal.

• Because the number of cookies is always increasing.

• Because the number of cookies is always decreasing.

What is the rate of cups of sugar per dozen mini cupcakes for the first set of data?

• 3.75

• 6

• 3

• 4

In the example with Jasmine's mini cupcakes, what is the rate of cups of sugar per dozen mini cupcakes for the last set of data?

• 3

• 4

• 3.75

• 3.6

In the practice problem with dollars per item sold, what is the constant rate?

• 6 dollars per item

• 5 dollars per item

• 7 dollars per item

• 8 dollars per item

Why is the snow accumulation example considered non-proportional?

• Because the hours are always increasing.

• Because the accumulation rate is not constant.

• Because the hours are always decreasing.

• Because the accumulation rate is constant.

In the coffee purchase example, how much does Lucy spend on coffee in 5 days?

• 8.25 dollars

• 8.75 dollars

• 5.25 dollars

• 12.25 dollars

What is the rate of travel in the example with 52 miles per hour?

• 50 miles per hour

• 52 miles per hour

• 54 miles per hour

• 56 miles per hour

How much does Lucy spend on coffee in 7 days?

• 13.25 dollars

• 11.25 dollars

• 10.25 dollars

• 12.25 dollars