Constant of Proportionality Practice

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, often represented as a unit rate.

Front

What does a unit rate represent?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit of another quantity.

Front

If the constant of proportionality is 3 tiles per minute, how many tiles are made in 5 minutes?

Back

15 tiles (3 tiles/minute * 5 minutes = 15 tiles).

Front

Write an equation for a proportional relationship where the constant of proportionality is 4.

Back

y = 4x.

Front

What is the constant of proportionality if 0.25 dollars is paid for 1 pound?

Back

0.25 dollars per pound.

Front

How do you determine if a relationship is proportional?

Back

A relationship is proportional if the ratio between the two quantities remains constant.

Front

What is the equation for a proportional relationship with a constant of proportionality of 18.50?

Back

y = 18.50x.

Front

If y = 3x, what is the constant of proportionality?

Back

3.

Front

What does the graph of a proportional relationship look like?

Back

A straight line that passes through the origin (0,0).

Front

If a table shows values of x and y, how can you find the constant of proportionality?

Back

Divide y by x for any pair of values; if the result is the same for all pairs, the relationship is proportional.