Proportions: Tables and Graphs

Front

What is a proportion?

Back

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

Front

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

Back

To find the unit rate, divide the total amount by the number of units.

Front

What does it mean if a graph goes through the origin?

Back

If a graph goes through the origin, it indicates a proportional relationship.

Front

What is a unit rate?

Back

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

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

If 4 pounds of apples cost $4.80, what is the unit rate?

Back

$1.20 per pound.

Front

What does a straight line on a graph indicate?

Back

A straight line indicates a constant rate of change, which can suggest a proportional relationship if it passes through the origin.

Front

What is the significance of the slope in a proportional relationship?

Back

The slope represents the unit rate in a proportional relationship.

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.

Front

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

Back

It means that the relationship does not have a constant ratio and does not pass through the origin.