Unit 2 and 3 Assessment Review (Period 4, No equations))

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, often expressed as 'per' (e.g., miles per hour, dollars per item).

Front

How do you identify a proportional relationship from a graph?

Back

A proportional relationship can be identified from a graph if it passes through the origin (0,0) and forms a straight line. The ratio of the y-value to the x-value remains constant.

Front

What is the constant of proportionality?

Back

The constant of proportionality, denoted as k, is the constant factor that relates two proportional quantities. It can be found by dividing the y-value by the x-value in a proportional relationship.

Front

What does it mean for a graph to be non-proportional?

Back

A non-proportional graph does not pass through the origin and does not maintain a constant ratio between the x and y values. It may show a curve or a straight line that does not start at (0,0).

Front

How do you calculate the price per ounce?

Back

To calculate the price per ounce, divide the total price by the total number of ounces. For example, if Oreos cost $2.98 for 15 oz, the price per ounce is $2.98 / 15.

Front

What is the formula to find the constant of proportionality from a table of values?

Back

To find the constant of proportionality from a table, divide the y-value by the corresponding x-value for any pair of values. If the result is the same for all pairs, the relationship is proportional.

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where their ratio is constant. This means that as one quantity increases, the other quantity increases at a consistent rate.

Front

What does it mean for a relationship to be non-proportional?

Back

A non-proportional relationship means that the ratio between the two quantities is not constant. This can occur when one quantity does not change in direct relation to the other.

Front

How can you determine which table shows a proportional relationship?

Back

To determine which table shows a proportional relationship, check if the ratio of y to x is the same for all pairs of values in the table.

Front

What is the significance of the point (1, k) on a graph representing a unit rate?

Back

The point (1, k) on a graph indicates the unit rate, where k represents the amount of the dependent variable (y) for one unit of the independent variable (x).