Use the Edit Graph window

Graph Size - Select Small, Medium, or Large to specify the size of the graph in the question. If Preview Actual Size is selected, the size you select is shown on the right side of the window.

Graph Scaling Mode - Select proportions of your graph display:

• Isotropic keeps the same scale in both axes. For example, if you set X minimum and maximum to (-10,10), and the Y minimum and maximum to (-5,5), the resulting display grid is half as high as it is wide.
• Anisotropic creates an almost proportional grid in X and Y. In the preceding example, the spacing between the Y values would be greater than the spacing between the X values, and the grid would be almost square.
• For anisotropic graphs, Keep Graph Square makes the grid an exact square.

Graph Title - Optionally enter a title for your graph.

Right-click in the Graph Title box and choose Editing Options to insert algorithmic values into your title.

Select Above Graph to display the title at the top of the graph; select Below Graph to display the title beneath the graph.

Show Grid - Clear this box to remove the grid lines from your graph.

TI82 Mode - Select this box to display the graph as it would look if graphed on a graphing calculator. Some title and color settings are ignored when graphing in this mode.

Authoring notes - Enter any information you might need if you edit the graph later.

Axis Label - Enter an alternate name in this box to change the label of the axis. You can right-click in the box and choose Editing Options to enter an algorithmic value in the label.

On the X-Axis tab, select Display label below graph to position the x-axis label below the graph; on the Y-Axis tab, select Display label vertically to position the y-axis label on the left side of the graph. The label reads from bottom to top.

Minimum - Enter a new value in this box to change the default minimum limit for the axis.

Maximum - Enter a new value in this box to change the default maximum limit for the axis.

In the Minimum and Maximum boxes, you can right-click and choose Editing Options to insert a predefined algorithmic value or math function or you can type in these values and functions directly. You can also create a new algorithmic value.

Tick Spacing - Enter a new value in this box to change the increments of the tick-marks on the axis of your graph. Tick marks begin at zero (0) and displays at evenly spaced intervals based on the tick-spacing value you specify. For example, if you enter 10, the tick marks represent increments of 10 (... -30, -20, -10, 0, 10, 20, 30, ...). If you set the tick spacing to an interval greater than the limits of your axis, only the origin is marked.

Tick Mark Labels - Choose one of the following options to specify what values to label along the axis:

• Label Minimum and Maximum - Select this option to label only the minimum and maximum values.
• Label Every - Enter or select a value to label every nth tick mark, where n is the value you entered in the Tick Spacing box. The labels begin with 0 and each nth tick is labeled. If you set an interval greater than the axis limits, only the origin is labeled.

Axis Location - Choose one of the following options to change the placement of the axis:

• Zero - Select this option to place the axis at the origin - that is, at 0.
• Bottom - On the X-Axis tab, select this option to place the x-axis at the bottom of the graph.
• Left - On the Y-Axis tab, select this option to place the y-axis at the left side of the graph.

The Plots tab lets you create plots for functions, parametric equations, linear equations, and points in a data set.

Click Add to get a menu where you can choose the type of plot you want to create. A label for the plot appears in the box at the top of the page. The bottom of the page refreshes with text boxes and options where you can define the parameters of your plot.

See one of the following topics for information on creating a particular type of plot: Plot functions, Plot parametric equations, Plot linear equations, Plot points in a data set.

To delete a plot from the graph, select the plot from the list and click Remove.

This tab lets you color any region of the graph. You can shade an area under a curve or an area bounded by two or more curves.

1. To create a shaded area, click Add.

   A label for the shaded area appears in the box at the top of the window.

2. Edit the template by using the options below.

Seed position - The seed position is a coordinate point in the region you want to shade; the region fills by working out from the seed point until it reaches a plot or the graph limits. You can select:

• Automatically fill-in x and y by clicking on plot - When this option is selected, you can specify a region to shade by clicking the graph image on the right.
• x = and y = - You can use these boxes to enter x and y coordinates for a seed position. Right-click and choose Editing Options to insert predefined algorithmic values or math functions; you also can type in values or functions directly or create a new algorithmic value.

Color - Click the color code to display the color chart, and then select the color for your shading by clicking a color box or by entering a color code in the box.

The Alt Text tab page lets you enter a brief description of the graph for students using screen readers.