Independent & Dependent Variables

Independent Variables

An independent variable is a variable in an equation, whose values compose the domain. An independent variable may have its value freely chosen regardless of the values of any other variable.

For example: In the equation indep_var_1 , the independent variable is x . The variable y is not independent, because it depends on the value chosen for x .
Example What is the independent variable in the function indp var 2 ?

The independent variable in the given equation is x.