From the Plot Components page of the Plot Properties dialog you can edit, add, and delete expressions to be plotted, choose the plot style, change the interval to be plotted and set the number of sampling points. The item box in the upper-left corner of the dialog box shows one of the expressions or functions you are plotting. These expressions or functions are referred to as ``items'' and listed by Item Number. You can view all current functions or expressions by clicking the up-down arrow buttons by the item box. You can change the curves that are plotted by editing the displayed item, by adding a new item, or by removing an item from the list.
You set the interval to be plotted by editing the numbers in the Domain Intervals boxes. The default is the interval -5≤x≤5. This controls the interval containing the sampling points that generate the plot.
You can increase the accuracy of the graph by increasing the Sample Size. Because increasing the Sample Size slows down the plotting process, you may want a relatively small number of data points for real-time demonstrations and a relatively large number of data points for printed documents.
In a plot, the data points computed either are connected by line segments or are displayed as points, depending on your choice of Plot Style as Line or Point. The default is Line, which connects the points with lines.
If the Plot Style is set to Line then you can change the appearance of a plot by changing Line Style, Thickness , and Line Color. You can set
If several expressions appear in the same view, you can set different parameters (such as Plot Style, Line Style, Thickness, and Line Color) to distinguish visually between the different expressions. You may prefer to distinguish between expressions by setting Line Color differently for each expression in screen-based documents, and to Black (the default) with a variety of Line Style and/or Thickness for printed documents.
You can also choose Point Plot, which displays only the computed points. You can choose the symbol (Point, Circle, Cross, or Diamond) used to plot the points with Point Symbol.