Domain Range Definition

As a function table and as a set of coordinates.

Domain range definition. The domain and range of a function is all the possible values of the independent variable x for which y is defined. Domain and range the domain of a function f x is the set of all values for which the function is defined and the range of the function is the set of all values that f takes. In plain english this definition means.

The example below shows two different ways that a function can be represented. In grammar school you probably called the domain the replacement set and the range the solution set. If you are still confused you might consider posting your question on our message board or reading another website s lesson on domain and range to get another point of view.

The range of a function is all the possible values of the dependent variable y. The domain of a function is all the possible input values for which the function is defined and the range is all possible output values.