It also shows plots of the function and illustrates the domain and range on a number line to enhance your mathematical intuition. Edit your functions and then click the "Graph it" button below. Any help is much appreciated! 4-1: Functions A function is a rule that assigns to every element in a set D (domain) exactly one element in the set R (range).We will treat functions as a set of ordered pairs (x,y) where x is in the domain and y is in the range with y = f(x). Domain and Range Worksheet #1 Name: _____ State the domain and range for each graph and then tell if the graph is a function (write yes or no). Free functions domain calculator - find functions domain step-by-step The range of a function is the set of output values when all x-values in the domain are evaluated into the function, commonly known as the y-values.This means I need to find the domain first in order to describe the range.. To find the range is a bit trickier than finding the domain. You can plot 2 functions, function 1 (in dark green) and function 2 (in magenta). Worked example: domain and range from graph Our mission is to provide a free, world-class education to anyone, anywhere. Overview. There is one other case for finding the domain and range of functions. Online Graphing Calculator: Plot your own SVG Math Graphs. How would I go about creating a graph with this info? Another way to identify the domain and range of functions is by using graphs. Wolfram|Alpha is a great tool for finding the domain and range of a function. The range is all the values of the graph from down to up. If the graph is a function, state whether it is discrete, continuous or neither. Hi, I'm looking for help on this problem. They will give you a function and ask you to find the domain (and maybe the range, too). For example, y=2x{1