Proportions: Tables and Graphs

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

What does it mean for a graph to be proportional?

Back

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

Front

What is a non-proportional relationship?

Back

A non-proportional relationship is one where the graph does not pass through the origin and does not maintain a constant ratio.

Front

How can you identify a proportional graph?

Back

A proportional graph will always be a straight line that passes through the origin.

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity.

Front

If a graph goes through the origin, is it proportional or non-proportional?

Back

It is proportional.

Front

What does it mean if a graph does not go through the origin?

Back

It means the relationship is non-proportional.

Front

What is the unit rate in the relationship of 120 miles in 2 hours?

Back

The unit rate is 60 miles per hour.

Front

What is the difference between proportional and non-proportional relationships?

Back

Proportional relationships have a constant ratio and pass through the origin, while non-proportional relationships do not.

Front

Can a straight line be non-proportional?

Back

Yes, if it does not pass through the origin.