 Hi, and welcome to the screencast and how to plot the graph of a single variable function in GeoGebra. Let's graph the function f of x equals x squared plus x minus four. To do this, I'm going to have GeoGebra open. Then I'm going to find the input bar, which should be in the lower part of the screen. Then I'll click to get the cursor in the input bar and then type f parenthesis x closed parenthesis equals x to the second power minus x plus four. Note that I used the current symbol, which is located above the six on the keyboard for exponents. Once I've entered this, I'm going to hit enter on the keyboard and the graph should appear and the formula for the function appears in the algebra window on the left. Let's graph another function, this time g of x equals the square root of x times cosine x. Go to the input bar and start typing g parenthesis x closed parenthesis equals Now for square root, there's no square root symbol on the keyboard, so I'm going to use the GeoGebra syntax for square root, which is the text sqrt. So I'm typing sqrt parenthesis x closed parenthesis and then I'm using the asterisk for times. GeoGebra will not interpret two variables sitting next to each other as multiplication, so the time symbol here is necessary. Then finally cosine of x and then hit enter. This shows that GeoGebra can plot multiple functions on the same set of axes, and that's how to plot the graph of the function in GeoGebra. Thanks for watching.