Proportional vs Non-porportional

Front

What is a proportional relationship?

Back

A proportional relationship is one where two quantities increase or decrease at the same rate, meaning their ratio remains constant.

Front

What is a non-proportional relationship?

Back

A non-proportional relationship is one where the ratio between two quantities does not remain constant as they change.

Front

If Kiontre reads 100 pages in 5 days, how many pages does he read in 1 day?

Back

20 pages.

Front

What is the unit rate of heart rate measured in beats per minute (bpm) if it is 150 bpm for 2 minutes?

Back

75 bpm.

Front

How do you determine if a relationship is proportional?

Back

A relationship is proportional if you can express it as a constant ratio or if a graph of the relationship is a straight line through the origin.

Front

What is the unit rate if Will spent $3.75 for 3 pounds of granola?

Back

$1.25 per pound.

Front

What does it mean if a graph is a straight line through the origin?

Back

It indicates a proportional relationship between the two variables.

Front

If a relationship is classified as non-proportional, what does that imply about the ratios?

Back

It implies that the ratios of the quantities are not constant.

Front

What is an example of a proportional relationship in real life?

Back

If you buy 2 pounds of apples for $4, the cost per pound is constant, making it proportional.

Front

What is an example of a non-proportional relationship?

Back

If a taxi charges a flat fee plus a per-mile rate, the total cost is non-proportional to the distance traveled.