Independent vs Dependent Variables Algebra

What is the independent variable?

Your test score depends on the time you spend studying.

• Time spent studying

• Test score

The independent variable is:

• s = stickers earned

• p = papers completed

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

• dependent

• independent

Grace is bringing treats to her Algebra 1 class on her birthday. The number of treats she brings is based on the number of students in her class.

Which of the variables is independent?

• number of students

• number of treats

A ​ ​ ​ (a)   variable changes in response to another variable.

• dependent

• independent

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

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

• Time in seconds

• Velocity after 2 minutes

• 8 m/s

• Dependent Variable x

• Velocity in m/s

• Independent Variable y

• 5 seconds

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

• y = 4x

• Equation

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

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

You are doing chores to earn your allowance. For each chore you do, you earn $3. In the equation below, c is the number of chores you do, and d is the number of dollars you earn.

The relationship between these two variables can be expressed by the following equation:

d=3c

Which of the following is the independent variable?

• The number of chores you do

• The amount of dollars you earn