Domain And Range In Interval Notation

When using interval notation domain and range are written as intervals of values.

Domain and range in interval notation. For f x x 2 the domain in interval notation is. Interval values represented on a number line can be described using inequality notation set builder notation and interval notation. Open parentheses closed parentheses infinity imagine an 8 sideways negative infinity an 8 sideways with a negative sign in front of it and union a symbol similar to an elongated u.

We can also use inequalities or other statements that might define sets of values or data to describe the behavior of the variable in set builder notation for example latex left x 10 le x 30 right latex describes the behavior of latex x latex in set builder notation. An understanding of toolkit functions can be used to find the domain and range of related functions. Interval notation is a method used to write the domain and range of a function.

In the previous examples we used inequalities and lists to describe the domain of functions. In interval notation there are five basic symbols to be familiar with. For many functions the domain and range can be determined from a graph.

0 r indicates that you are talking about the range.