Independent and Dependent Real World

Which label best describes the independent quantities shown in the table?

• Number of tickets (t)

• Cost (c)

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

• dependent

• independent

A(n) _____________ variable is the one you can change.

• dependent

• independent

What is the independent variable?

The number of students in a class, s, and the number of desks needed, d

• number of students in a class, s

• number of desks needed, d

• number of desks in a class, d

• number of students needed, s

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

• y = 4x

• Velocity after 2 minutes

• Velocity in m/s

• Dependent Variable x

• 8 m/s

• Equation

• 5 seconds

• Independent Variable y

• Time in seconds

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

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

Which is the dependent variable?

• x

• y

• -1/2

• 4

Name the INDEPENDENT variable from the table.

• words

• minutes

In the table, Bubbles is the ______________.

• independent variable

• dependent variable