Plot Function

1. Click on "2D" graph in Draw Attributes.
2. [Make sure "Cartesian" coordinates is selected in Draw Attributes.]
3. [Make sure "y=" is selected in front of the yellow text box.]
4. Type in a function such as: x^2/5+sin(x)
   • You may use x variable if "y=" is selected
   • You may use y variable if "x=" is selected

Details:

When you start Graphing Calculator 3D it will have an empty function text box ready to be used. If there are no empty function text box, you may add one by clicking on the yellow pencil labeled "Add new equation" button as circled below.

By default the new function is a 3D function. In order to switch to 2D select 2D graph in Draw Settings as shown below. This will result in displaying y= in front of the equation text box.

In front of "y=" start typing a function (you do not need to type y=) such as:

x^2/5+sin(x)

In the above formula, the variable x is raised to power of 2 then divided by 5 and finally added to sine of x.

Once you are done typing the formula, press ENTER or click on "Redraw All" to plot the function as shown below. If you prefer a thicker graph line change the Thickness in the draw attribute as circled in the screen shot below: