Graphing Proportional Relationships

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other is constant.

Front

What is a non-proportional relationship?

Back

A non-proportional relationship is a relationship where the ratio of one quantity to another is not constant.

Front

How can you identify a proportional graph?

Back

A graph is proportional if it passes through the origin (0,0) and forms a straight line.

Front

What does the unit rate represent?

Back

The unit rate represents the amount of one quantity per one unit of another quantity.

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the total quantity by the total time or units.

Front

What is the unit rate for 405 rotations in 5 minutes?

Back

81 rotations per minute.

Front

What does it mean if a graph is non-proportional?

Back

It means that the relationship between the two variables does not maintain a constant ratio.

Front

Which graph represents a proportional relationship?

Back

A graph that is a straight line passing through the origin.

Front

What is the significance of the origin in proportional relationships?

Back

The origin (0,0) indicates that when one quantity is zero, the other quantity is also zero.

Front

How can you tell if a table of values represents a proportional relationship?

Back

If the ratios of corresponding values are constant, the relationship is proportional.