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).

Other

• 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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