Dependent and Independent Variable Math

Priya streams movies through a company that charges her a $5 monthly fee plus $1.50 per movie.  Her monthly movie cost can be found using the equation C=5+1.5m where C is the money it costs and m is the number of movies she rents. What is the dependent variable?

• the number of movies she rents

• the company that she rents from

• the money it costs

• There isn't one

Daisy is training for a marathon.  The amount of time spent running depends on how far she runs.  Which statement is true

• The dependent variable is the amount of time spent running, the independent variable is the miles run. 

• The dependent variable is miles run, the independent variable is the time spent running.

• The independent variable is her running shoes and the dependent variable is the flavor of gatorade she drinks

• The dependent variable is the weather and the independent variable is the time of day. 

The volume of a sphere is given by the formula V=4πr³, where V is the volume and r is the radius.  What is the dependent variable in this situation?

• V

• 4

• r

• π

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

• independent; dependent

• dependent; independent

A(n) _____________ variable depends on or is changed by another variable.

• dependent

• independent

In this scenario, candy is the _________________ variable.

• independent

• dependent

In order to earn extra spending money, Dalton babysits children after school. The greater the number of hours he babysits, the more money he earns. h = the number of hours Dalton babysits m = the amount of money Dalton earns Which of the variables is DEPENDENT?

• h

• m

In the equation m = 5 r + 4, which of the following represents the dependent variable?

• r

• 5

• m

• 4

Input is also known as what?

• Independent Variable

• Dependent Variable

• Additive Relationship

A food service worker earns $12 per hour. How much money, m, does the worker earn on a shift of h hours? Identify the dependent variable.

• money

• hours