Identifying Dependent and Independent Variables

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

Which of the following is true?

• 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

Which variable is dependent?

Mr. Pransky wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable?

• the different surfaces

• how high they bounce

What is the INDEPENDENT VARIABLE?

• John's age

• John's height

What is the DEPENDENT VARIABLE?

• John's age

• John's height

The more gallons of milk I have, the more glasses of milk I can drink.

What is the INDEPENDENT VARIABLE?

• gallons of milk

• glasses of milk I drink

What is the DEPENDENT VARIABLE?

• gallons of milk

• glasses of milk I drink

The number of seats in a movie theater determines how many tickets can be sold.

What is the INDEPENDENT VARIABLE?

• number of seats

• number of tickets sold

What is the DEPENDENT VARIABLE?

• number of seats

• number of tickets sold