HOW TO USE THIS APPLET
The graph area
- Drag highlighted points ( ) to change the slope of a line (or segment).
- Drag any other location along a line (segment) to move the line (segment).
- Use the "GRAPH LINES" button to graph lines through the highlighted points ( ).
- Use the "GRAPH SEGMENTS" button to graph line segments with the highlighted points ( ) as endpoints.
- Use the "RESET" button to restore the applet to the initial state.
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