When finding the domain remember.
Define range in math function.
As a function table and as a set of coordinates.
The range is the difference between the lowest and highest numbers in a data set.
Illustrated definition of range of a function.
These won t be terribly useful or interesting functions and relations but your text wants you to get the idea of what the domain and range of a function are.
In 4 6 9 3 7 the lowest value is 3 and the highest is 9 so the range is 9 3 6.
Essentially the range tells us how spread apart a group of numbers is.
The range is the set of all possible output values commonly the variable y or sometimes expressed as f x which result from using a particular function.
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 of a function definitions of domain and range domain.
In plain english this definition means.
The example below shows two different ways that a function can be represented.
Range can also mean all the output values of a function.
The range of a function is all the possible values of the dependent variable y.
The set of all output values of a function.
A graph of a typical line such as the one shown below will extend.
The range of a simple linear function is almost always going to be all real numbers.
Essentially the range tells us how spread.
When functions are first introduced you will probably have some simplistic functions and relations to deal with usually being just sets of points.
The domain is the set of all possible x values which will make the function work and will output real y values.