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 quantity is constant.

Front

How can you identify a proportional relationship on a graph?

Back

A proportional relationship on a graph is identified by a straight line that passes through the origin (0,0).

Front

What does it mean if a graph does not pass through the origin?

Back

If a graph does not pass through the origin, it indicates that the relationship is not proportional.

Front

If Kelsey buys 5 ornaments for $45, how much does each ornament cost?

Back

Each ornament costs $9.

Front

Back

The tree grows 1 foot in one year.

Front

What is the formula for finding the unit rate?

Back

The unit rate is found by dividing the total amount by the number of units, expressed as \( \text{Unit Rate} = \frac{\text{Total Amount}}{\text{Number of Units}} \).

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant value of the ratio between two proportional quantities.

Front

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

Back

To find the constant of proportionality from a table, divide the output value by the input value for any pair of corresponding values.

Front

What is an example of a proportional relationship in real life?

Back

An example of a proportional relationship is the cost of apples per pound; if 1 pound costs $2, then 2 pounds cost $4.

Front

What does it mean for a relationship to be linear?

Back

A linear relationship means that the relationship can be represented by a straight line on a graph.