Constant of Proportionality

Front

What is the constant of proportionality?

Back

The constant of proportionality is a constant ratio between two quantities that are directly proportional to each other.

Front

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

Back

To find the constant of proportionality from a table, divide the value of one quantity by the corresponding value of the other quantity.

Front

If a car travels 90 miles in 2 hours, what is the constant of proportionality (speed)?

Back

45 mph.

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 do you calculate the unit rate from a total?

Back

To calculate the unit rate, divide the total amount by the number of units.

Front

If 624 calories are consumed in 3 servings, what is the unit rate of calories per serving?

Back

208 calories per serving.

Front

What does it mean if two quantities are proportional?

Back

Two quantities are proportional if they maintain a constant ratio or relationship.

Front

What is the formula for finding the constant of proportionality (k)?

Back

k = y/x, where y is the dependent variable and x is the independent variable.

Front

If Ben drinks 1/2 liter of tea every 2/3 of an hour, how much does he drink per hour?

Back

3/4 of a liter per hour.

Front

What is the constant of proportionality if k = 1.50?

Back

It means for every 1 unit of x, y increases by 1.50 units.