Proportional & Non-Proportional Relationships

Front

What is a proportional relationship?

Back

A relationship where two quantities increase or decrease at the same rate.

Front

What is a non-proportional relationship?

Back

A relationship where two quantities do not have a constant ratio.

Front

What does it mean if a graph passes through the origin?

Back

It means that when one variable is zero, the other variable is also zero.

Front

What is the constant of proportionality?

Back

The constant ratio between two proportional quantities, often represented as 'k'.

Front

How do you determine if a relationship is proportional?

Back

Check if the ratio of y to x is constant.

Front

What is the formula to find the constant of proportionality (k)?

Back

k = y/x.

Front

If Craig earns $37 for 4 hours, what is his rate per hour?

Back

$9.25 per hour.

Front

What is a linear relationship?

Back

A relationship that can be represented by a straight line on a graph.

Front

What does it mean for a graph to be linear?

Back

It means that the relationship between the variables is constant.

Front

What is an example of a proportional relationship in real life?

Back

If you buy 2 apples for $2, then 4 apples will cost $4.