Plotting a graph in GeoGebra using known equations is easy. Just type in the equation in the input bar at the left side of the applet and it is generated. [br]To start, try drawing the graph for the equation y=2x+4. [br]Next, try drawing a vertical line graph using equation x=3. [br]Use your mouse to move the the lines around and notice the changes to the equations.[br]Feel free to explore and write in different mathematical equations, generating different graphs.