Adding a Segment to a Number Line

Number line labeled from -10 to 10 in units of 2. There is a line segment starting at -7 and ending at 5

To add a segment to a number line graph:

Insert a number line graph or edit an existing graph by double-clicking it. The Number Line Graph dialog box opens.
In the Layers section, click Add.
Select Segment in the Add Number Line Layer dialog box and then click OK.
Enter the Coordinate for the endpoints of the segment.
Select a Point Style for the endpoints.
Enter an optional Label for each endpoint.
Select Show coordinate to display the location of the endpoint.
Select a Line Style for the line.
Note: You can format the text using HTML text.
Select a Color for the endpoints and segment.
If you want the layer to display only if a certain condition is met, enter an equation or a variable that evaluates to true or false into the Show if field. .

Note: When entering variables, enclose the variable name in two opening and two closing number signs (for example, ##var1## = 3). The variable you reference must be defined for the question or the preface associated with the question.
Click OK.