Independent Dependent Variables

What are the variables in the following expression?

• 3, 4, 1 and 7

• z, x and y

• + and -

• 15

Carey and Justin are raising money to purchase books for their school's library. The more money they raise, the more books they will be able to purchase for the library.
m = the amount of money Carey and Justin raise
b = the number of books Carey and Justin will be able to purchase
Which of the variables is dependent?

• m

• b

What is the constant of proportionality? 

• 8

• 16

• 24

• 2

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

• Number of tickets (t)

• Cost (c)

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

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

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

• 2x

• x

• -4

• y