Independent & Dependent Variables

A ______variable whose value changes in response to another variable.

• dependent

• independent

Identify the dependent variable: The number of minutes spent talking on the phone (m) and the amount of a cell phone bill (a)

• a

• m

Identify the independent variable:

Dollars earned (d) and the number of hours spent babysitting (h)

• h

• d

The number of omelets Ben makes (o) and the number of eggs (e). Draw the letter of the dependent variable below.

What is the dependent variable in the equation y = 3x - 2?

• y

• x

• -2

• 3x

In the equation y = 2x - 4, what is the dependent variable?

• 2x

• x

• -4

• y

Which is the dependent variable?

• x

• y

• -1/2

• 4

The dependent variable is:

• x

• y

Which is the dependent variable?

• x

• y

• -1/2

• 4

Elizabeth hired a cleaning service to clean her house. To find C, the total cost of cleaning her house, she used the following equation.

C = 7.5x + 25

What is the dependent variable for the equation?

• 7.25

• 25

• C

• x