Constant of Proportionality Review

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, often represented as 'k' in the equation y = kx.

Front

If a car travels 60 miles in 1 hour, how far will it travel in 3 hours?

Back

180 miles

Front

What does it mean for two quantities to be proportional?

Back

Two quantities are proportional if they maintain a constant ratio to each other.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total quantity by the number of units.

Front

If a recipe calls for 4 cups of flour for 2 loaves of bread, how much flour is needed for 5 loaves?

Back

10 cups of flour (4 cups/2 loaves = 2 cups per loaf; 2 cups x 5 loaves = 10 cups).

Front

What is the unit cost of an item?

Back

The unit cost is the price of one unit of a product, calculated by dividing the total cost by the number of units.

Front

If a bike rental costs $15 for 3 hours, what is the cost per hour?

Back

$5 per hour.

Front

What is the formula for finding the constant of proportionality?

Back

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

Front

If a car travels 150 miles in 3 hours, what is its speed in miles per hour?

Back

50 miles per hour (150 miles / 3 hours = 50 miles per hour).

Front

How do you determine which option has the lowest cost per unit?

Back

Calculate the cost per unit for each option and compare them.