Desmos.com is a useful tool that can graph points from tables and lines from equations. The examples below provide basic instructions for using the program.
Go to: https://www.desmos.com/calculator
Graphing Equations
To graph an equation, select “\(f(x)\) expression” from the “+” drop-down menu (shown in Figure 1) and type in the equation on the first line in the left panel.
To graph multiple equations, press “Enter” after typing each equation, or use the “+” from the drop-down menu, and select “\(f(x)\) expression” for each new equation. Figure 2 shows shows multiple graphed equations.
Graphing Tables
To graph a table, select “table” from the “+” drop-down menu (shown in Figure 3), and enter \(x\)- and \(y\)-values to create ordered pairs.
To graph multiple tables, press “Enter” after typing each table, or use the “+” from the drop-down menu and select “table” for each new table. Figure 4 shows multiple tables and their associated plotted points.
Graphing Tables with Graphs
To graph an equation with its points, select “table” from the “+” drop-down menu, and then select “\(f(x)\) expression” from the same menu. Type in the table values and the equation (shown in figure Figure 5).
