Non Proportional Relationships

Front

What is a non-proportional relationship?

Back

A non-proportional relationship is a relationship between two quantities where the ratio of one quantity to another is not constant.

Front

What is the equation for a repairman's pay if he charges $75 plus $40 per hour?

Back

y = 40x + 75, where y is the total pay and x is the number of hours worked.

Front

How do you determine if a table represents a proportional relationship?

Back

A table represents a proportional relationship if the ratios of the corresponding values are constant.

Front

What does a zero slope indicate in a graph?

Back

A zero slope indicates that the line is horizontal, meaning there is no change in the y-value as the x-value changes.

Front

If a company charges $40 for setup costs plus $12 per shirt, what is the total cost for 10 shirts?

Back

$160, calculated as 40 + (12 * 10).

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

What is the formula for calculating total cost in a non-proportional relationship?

Back

Total Cost = Fixed Cost + (Variable Cost per Unit * Number of Units).

Front

What does it mean if a relationship is described as 'not proportional'?

Back

It means that the relationship does not maintain a constant ratio between the two quantities.

Front

How can you identify a proportional relationship from a graph?

Back

A proportional relationship will show a straight line that passes through the origin (0,0).

Front

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

Back

An example is a cell phone plan that has a fixed monthly fee plus a charge per minute.