Math Dependent and Independent Variable

Determine which is the INDEPENDENT variable: the amount of money earned or the number of lawns you mowed

• number of lawns mowed

• money earned

• Both are

• Neither are

Determine which is the INDEPENDENT variable: the number of minutes running or the amount of calories burned

• Number of minutes running

• number of calories

• They are both

• neither one is

Determine which is the DEPENDENT variable: the grade made on your math test or the number of minutes you spent studying

• Grade on math test

• number of minutes

• Both are

• Neither are

Determine which is the INDEPENDENT variable: the grade made on your math test or the number of minutes you spent studying

• neither are

• both are

• grade on the test

• number of minutes

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

• 2x

• x

• -4

• y

Match the following using the given graph of a two-variable equation.

• Time in seconds

• Independent Variable y

• 8 m/s

• Time it takes to reach a velocity of 20 m/s

• 5 seconds

• Equation

• y = 4x

• Dependent Variable x

• Velocity in m/s

• Velocity after 2 minutes

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

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

• y

• x

• -2

• 3x

Which is the dependent variable?

• x

• y

• -1/2

• 4