# Dependent and independent variables review

CCSS Math: 6.EE.C.9
Identify dependent and independent variables and apply them to contexts.

## Independent variable

An independent variable is a variable that represents a quantity that is being manipulated in an experiment.
$x$ is often the variable used to represent the independent variable in an equation.

### Example:

You are doing chores to earn your allowance. For each chore you do, you earn $\3$.
What is the independent variable?
The independent variable is the amount of chores you do because this is the variable you have control over.

## Dependent variables

A dependent variable represents a quantity whose value depends on how the independent variable is manipulated.
$y$ is often the variable used to represent the dependent variable in an equation.

### Example:

Let's use the same context.
You are doing chores to earn your allowance. For each chore you do, you earn $\3$.
What is the dependent variable?
The dependent variable is the amount of money you earn because the amount of money you earn depends on how many chores you do.