Proportional Relationships

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Front

How do you determine if a relationship is proportional?

Back

A relationship is proportional if you can express it as a constant ratio or if a graph of the relationship is a straight line that passes through the origin.

Front

What is the constant of proportionality?

Back

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

Front

If 1 meter is approximately 1.09 yards, how many yards are in 4.5 meters?

Back

4.905 yards.

Front

What is the equation for a proportional relationship represented by a graph that passes through the origin?

Back

The equation is of the form y = kx, where k is the constant of proportionality.

Front

If Chelsea plays 3 rounds of mini golf at $14.50 each, how much will she pay?

Back

$43.50.

Front

What is the total cost for unlimited rounds of mini golf for a day?

Back

$40.

Front

How much money does Chelsea save by choosing unlimited golfing over 3 rounds?

Back

$3.50.

Front

What does it mean if a table shows a constant rate of change?

Back

It means the relationship is proportional, and you can find the constant of proportionality.

Front

If Jude can make 2 pizzas per hour, what is the rate of change?

Back

The rate of change is 2 pizzas per hour.