Independent and Dependent Variables Practical Problems

• the independent variable is distance
• the independent variable is d=25 t
• the dependent variable is time
• the dependent variable is distance

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

• dependent

• independent

Name the INDEPENDENT variable from the table below.

• words

• minutes

In the table, Bubbles is the ______________.

• independent variable

• dependent variable

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

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

• y = 4x

• Equation

• 8 m/s

• Independent Variable y

• Velocity in m/s

• Dependent Variable x

• 5 seconds

• Velocity after 2 minutes

• Time in seconds

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

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

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