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

How do you determine if a table represents a proportional relationship?

Back

A table represents a proportional relationship if the ratios of the corresponding values are equal.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant ratio in a proportional relationship, often represented as 'k'.

Front

If an object weighs 42 lbs on Earth, how much does it weigh on the Moon?

Back

7 lbs.

Front

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

Back

If a graph passes through the origin, it indicates that the relationship is proportional.

Front

What is a unit rate?

Back

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

Front

How can you identify a non-proportional relationship from a graph?

Back

A non-proportional relationship can be identified if the graph does not pass through the origin or if the line is not straight.

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.

Front

If the unit rate is not constant, what can you conclude about the relationship?

Back

If the unit rate is not constant, the relationship is not proportional.

Front

What does it mean for a relationship to be linear?

Back

A linear relationship means that the graph of the relationship forms a straight line.