Identify Independent and Dependent Variables in Equations

Identify the independent variable
The number of hours, h, worked and the amount of money, m, earned

• hours, h

• money, m

Identify the independent variable

The number of hamburgers, h, sold and the dollar amount of sales, s taken in

• h

• s

Identify the variables in the following situation:
An athlete runs m miles and burns c calories

• m is the dependent variable and c is the independent variable.

• m is the independent variable and c is the dependent variable

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

• 2x

• x

• -4

• y

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

• y

• x

• -2

• 3x

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

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

Which is the dependent variable?

• x

• y

• -1/2

• 4

Which is the dependent variable?

• x

• y

• -1/2

• 4

• the independent variable is time

• the independent variable is d=25 t

• the dependent variable is time

• the independent variable is distance