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

What is the unit rate?

Back

The unit rate is the ratio of two measurements in which the second quantity is one unit.

Front

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

Back

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

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, meaning when one quantity is zero, the other is also zero.

Front

What is the equation of a proportional relationship?

Back

The equation of a proportional relationship can be expressed in the form y = kx, where k is the constant of proportionality.

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 table is not proportional?

Back

A table is not proportional if the ratios of the corresponding values are not constant.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant value (k) that relates two proportional quantities.

Front

How do you find the unit rate from a table?

Back

To find the unit rate, divide the value of one quantity by the value of the other quantity when the second quantity is one.

Front

What is the significance of a linear graph in relation to proportional relationships?

Back

A linear graph indicates a constant rate of change, which is a characteristic of proportional relationships.