Independent and Dependent Math

Dilcia wants to know how drinking milk affects how tall a Monica grows. Which is the independent variable?

• Monica's growth

• drinking milk

Carey and Justin are raising money to purchase books for the library. The more money they raise, the more books they will be able to purchase for the library.

Which of the variables is dependent?

• amount of money raised

• number of books purchased after raising the money

In order to earn extra spending money, Delaney babysits children after school. The greater the number of hours she babysits, the more money she earns.

Which of the variables is dependent?

• number of hours worked

• money earned

Sarah is bringing treats to her elementary school class on her birthday. The number of treats she brings in is based on the number of students in her class.

What is the dependent variable?

• number of students

• number of treats

Carey and Justin are raising money to purchase books for the library. The more money they raise, the more books they will be able to purchase for the library.

What is the independent variable?

• amount of money raised

• number of books purchases after raising the money

In order to earn extra spending money, Delaney babysits children after school. The greater the number of hours she babysits, the more money she earns.

What is the independent variable?

• number of hours worked

• amount of money earned

A food service worker earns $12 per hour. If the wages earned depends on the number of hours worked, identify the independent variable.

• wages earned

• number of hours

A food service worker earns $12 per hour. If the wages earned depends on the number of hours worked, identify the dependent variable.

• wages earned

• number of hours

Changes in the _________ variable causes changes in the _________ variable.

• independent; dependent

• dependent; independent

• The dependent variable is total cost
• The dependent variable is weight
• The independent variable is total cost
• The independent variable is cost of a package