Independent and Dependent Variables

True or False: Cost, money, and the amount are dependent variables.

• True

• False

Dale is taking a benchmark test. His final test score will depend on the number of questions correctly. Which of the variables is independent?

• s=scores

• q=questions

Sarah is bringing treats to her elementary school class on her birthday. The number of treats she brings in is based on the number of students in her class.
t = the number of treats
s = the number of students
Which of the variables is independent?

• s
• t

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

In order to earn extra spending money, Dalton babysits children after school. The greater the number of hours he babysits, the more money he earns.
h = the number of hours Dalton babysits
m = the amount of money Dalton earns
Which of the variables is dependent?

• h
• m

On a graph, which axis shows the independent variable?

• x-axis
• y-axis
• neither
• it changes

On a graph, which axis shows the dependent variable?

• x-axis
• y-axis
• neither
• it changes

What is the algebraic equation for this table?

• y = x + 3
• y = 3x
• y = x ÷ 3
• y = x - 3

What is the pattern in the table below?

• multiplying the number of shots by 3
• adding 3 to the number of shots
• adding 1 to the number of shots
• dividing the number of shots by 3

Name the INDEPENDENT variable from the table below.

• words
• minutes