Lines are similar to line segments except they have infinite length.
| 1. | Click the Infinite Line icon  in the Draw toolbox or select Infinite Line from the Draw menu. |
| 2. | Position the line cursor  in the drawing window. |
| 3. | Click the cursor to anchor the line at the cursor position. The anchor point will be displayed on the line. |
| 4. | Move the cursor in the drawing window to position the line and click the cursor when you get the line in the desired orientation. |
Lines are infinite and do not have points associated with them unless you specifically place one on the line.
Active Axes -
The x and y axes have the properties of perpendicular infinite lines. When the crosshairs are positioned over an axis, the incidence symbol (bowtie) is displayed at the intersection and the axis is highlighted. When the cursor is at the origin, both axes are highlighted. Points and End points of line segments can be placed directly on the axes.