Proportional or Not? Graphs

Front

Are Craig's earnings proportional if he earns $37 for 4 hours and $64.75 for 7 hours?

Back

Yes, Craig's earnings are proportional because the ratio of earnings to hours worked is constant.

Front

What is the unit rate?

Back

The unit rate is the amount earned or consumed per one unit of measure. For example, if Craig earns $37 for 4 hours, the unit rate is $9.25 per hour.

Front

What is the ordered pair (0,0) known as?

Back

The origin.

Front

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

Back

A non-proportional relationship means that the ratio between two quantities is not constant.

Front

How can you determine if a graph represents a proportional relationship?

Back

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

Front

What is the definition of proportional?

Back

Proportional means that two quantities maintain a constant ratio or relationship.

Front

If a graph does not pass through the origin, what can you conclude?

Back

If a graph does not pass through the origin, it is non-proportional.

Front

What is an example of a proportional relationship?

Back

An example of a proportional relationship is earning $10 for every hour worked.

Front

What is an example of a non-proportional relationship?

Back

An example of a non-proportional relationship is earning a flat fee plus an hourly rate, such as $50 plus $15 per hour.

Front

What does the slope of a line in a graph represent in a proportional relationship?

Back

The slope represents the unit rate or the constant ratio of the two quantities.