Constant of Proportionality Review (7.RP.A.1 & 7.RP.A.2)

Front

What is the unit rate of miles per hour if Jonathan ran 3 miles in 20 minutes?

Back

9 miles per hour

Front

Does the following table represent a proportional relationship? (Example: (1,2), (2,4), (3,6))

Back

No

Front

A proportional relationship can be written as an equation in the form ____ = _____  _____

Back

y = kx

Front

What is the total cost of tickets if there are 7 adults and each ticket costs $75?

Back

$525

Front

Is this table proportional? (Example: (1,2), (2,5), (3,8))

Back

No

Front

What is the constant of proportionality in the equation y = kx?

Back

k is the constant of proportionality.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the constant of proportionality?

Back

The constant of proportionality is 2/3.

Front

What does it mean for two quantities to be proportional?

Back

Two quantities are proportional if they have a constant ratio.

Front

If a car travels 60 miles in 1 hour, what is its speed in miles per hour?

Back

60 miles per hour

Front

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

Back

k = y/x for any pair (x,y).