Function Notation and Properties

Function, function, what's your...function?

Definition of Function

A function is a relationship between two variables such that for each value of the independent variable there corresponds exactly one value of the dependent variable.


Domain and Range

The domain of a function is the set of all values (inputs) of the independent variable for which the function is defined.



The range of a function is the set of all values (outputs) assumed by the dependent variable.