These values are quartile 1 Q1 and quartile 3 Q3. This is THE way you find the range. We can find the range of a function by using the following steps.
The IQR describes the middle 50 of values when ordered from lowest to highest.
In this case the lowest y-coordinate is at the vertex -5 and the graph extends infinitely above this point. The range here is going to be we could say fx is a member of the real numbers such that fx does not equal zero fx does not equal zero So the domain is all real numbers except for zero the range is all real numbers except for zero. Steps to Find the Range of a Function Suppose we have to find the range of the function f xx2 f x x 2. To find the x-coordinate use the equation x -b2a.