Sometimes you are given a function on a graph and asked to find the domain and range of that function. But what are the domain and the range of a function? The examples below will hopefully make this clear.

First, let start with the definition of ‘Domain’ and ‘Range’ of a function.

Domain: All the possible x-values that the function is allowed to have.

Range: The set of all the possible y-values of that function.

Sometimes you are given a function on a graph and asked to find the domain and range of that function. But what are the domain and the range of a function? The examples below will hopefully make this clear.

First, let start with the definition of ‘Domain’ and ‘Range’ of a function.

Domain:All the possiblex-valuesthat the function isallowed to have.Range:The set of all the possibley-valuesof that function.Example 1– Linear FunctionExample 2– Quadratic FunctionExample 3– Power Function (Power is a fraction)Example 4– Inverse FunctionExample 5– Sin Function## Nouri Dib