Proportional Relationships (Part 1)

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 is constant.

Front

Which equation represents a proportional relationship?

Back

y = kx, where k is a constant.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant factor (k) that relates two proportional quantities.

Front

How do you find the unit rate in a proportional relationship?

Back

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

Front

What does a proportional graph look like?

Back

A proportional graph is a straight line that passes through the origin (0,0).

Front

What is the unit rate for apples if 25 ounces cost $3.70?

Back

$0.15 per ounce.

Front

What is the difference between proportional and non-proportional relationships?

Back

Proportional relationships have a constant ratio, while non-proportional relationships do not.

Front

If y = 7x, what is the constant of proportionality?

Back

7.

Front

Which of the following is a non-proportional equation? y = 4x + 1, y = 3x, y = 2x - 5

Back

y = 4x + 1 and y = 2x - 5 are non-proportional.

Front

What does it mean if a graph is non-proportional?

Back

It means the relationship between the variables does not maintain a constant ratio.