Unit 2: Proportional and Non-proportional Relationships Review

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 a non-proportional relationship?

Back

A non-proportional relationship is a relationship between two quantities where the ratio is not constant.

Front

What is the constant of proportionality?

Back

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

Front

How do you find the constant of proportionality from a table?

Back

Divide the value of y by the value of x for any pair of values in the table.

Front

What does it mean if a table is not proportional?

Back

It means that the unit rate (ratio) between the quantities is not 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 tell if a graph represents a proportional relationship?

Back

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

Front

What is the equation of a proportional relationship?

Back

The equation of a proportional relationship can be written as y = kx, where k is the constant of proportionality.

Front

If the ordered pair is (4, 12), what is the constant of proportionality?

Back

3 (because 12 divided by 4 equals 3).

Front

What does it mean for a relationship to be proportional in a table?

Back

It means that for every increase in x, there is a consistent increase in y, maintaining a constant ratio.