Proportional Relationships Module 1 Review

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It expresses how many units of one quantity correspond to one unit of another quantity.

Front

How do you find the unit rate from a given quantity?

Back

To find the unit rate, divide the total quantity by the number of units. For example, if you have 72 ounces for 12 servings, the unit rate is 72 ÷ 12 = 6 ounces per serving.

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 quantity is constant.

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 equivalent.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant ratio in a proportional relationship, often represented as k in the equation y = kx.

Front

How do you find the constant of proportionality from a given ratio?

Back

To find the constant of proportionality, divide the dependent variable by the independent variable. For example, if y = 6 when x = 1, then the constant of proportionality is 6.

Front

What does the ordered pair (x, y) represent in a graph?

Back

The ordered pair (x, y) represents a point on the graph where x is the value on the horizontal axis and y is the value on the vertical axis.

Front

What does it mean if a relationship is described as proportional?

Back

If a relationship is described as proportional, it means that as one quantity increases or decreases, the other quantity does so at a constant rate.

Front

What is the significance of the point (0, 0) in a proportional relationship?

Back

The point (0, 0) is significant because it represents the origin, indicating that when there is no input (x = 0), the output (y) is also zero.

Front

How can you identify a proportional relationship from a graph?

Back

A proportional relationship can be identified from a graph if the line passes through the origin (0, 0) and is straight.