Constant of Proportionality Review

Front

What is the constant of proportionality?

Back

The constant of proportionality is a constant ratio or unit rate that describes how two quantities are related to each other.

Front

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

Back

To find the constant of proportionality, divide one quantity by the corresponding quantity in the table.

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

What is the equation of a proportional relationship?

Back

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

Front

If a cab ride costs $15 for 6 miles, what is the cost per mile?

Back

$2.50 per mile.

Front

What does 'y over x' represent in a proportional relationship?

Back

'y over x' represents the ratio of the dependent variable (y) to the independent variable (x).

Front

What is the relationship between unit price and constant of proportionality?

Back

The unit price is a specific example of the constant of proportionality, representing the cost per single unit.

Front

If a car travels 90 miles in 2 hours, what is the constant of proportionality in miles per hour?

Back

45 mph.

Front

What does it mean if two quantities are proportional?

Back

It means that as one quantity increases or decreases, the other quantity does so at a constant rate.

Front

How can you express a proportional relationship in a graph?

Back

A proportional relationship can be expressed as a straight line that passes through the origin on a graph.