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.

• Velocity in m/s

• Velocity after 2 minutes

• 8 m/s

• Dependent Variable x

• y = 4x

• Independent Variable y

• Time in seconds

• Equation

• 5 seconds

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

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