Interpret 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 quantity is constant.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It is expressed as a quantity of one per one unit of another quantity.

Front

How do you find the unit rate from a proportional relationship?

Back

To find the unit rate, divide the first quantity by the second quantity.

Front

If Hannah reads 5/8 page in 2/3 minute, how many pages can she read in one minute?

Back

15/16 pages per minute.

Front

What does the point (2, 94) represent in a proportional relationship?

Back

After 2 weeks, they save $94.

Front

What is a non-proportional relationship?

Back

A non-proportional relationship is a relationship where the ratio between two quantities is not constant.

Front

How can you identify a proportional relationship from a graph?

Back

A proportional relationship will show a straight line that passes through the origin (0,0) on a graph.

Front

What does it mean if a graph does not show a proportional relationship?

Back

It means that the ratio between the two quantities changes and is not constant.

Front

What is the formula for finding the constant of proportionality?

Back

The constant of proportionality can be found by dividing one quantity by the other in a proportional relationship.

Front

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

Back

An example is the relationship between distance and time when traveling at a constant speed.