This applet is copyright (©) Dec. 2006, Ian Vogt. Permission to use, copy, and distribute this applet for non-commercial purposes without written permission is granted provided this copyright notice is preserved on all copies. This applet is provided "as-is" without any warrantee.

**To draw a graph of a function containing an absolute value, a quadratic polynomial,
or a square root**:

First calculate a number of points that fall on the graph -- if the graph contains a vertex, that should be one of the points. Then, draw the graph as a series of segments between the points you have computed. For each line segment:

- Move the mouse cursor to the first point on the line segment (either one will do).
- Press and hold the left mouse button.
- Drag the mouse cursor to the second point. You will see a "rubber band" line from the first point.
- Release the mouse button. The program will draw a straight line between the two plotted points

If you are graphing a function that contains a quadratic polynomial or a square root the lines between the points are not straight. To bend a line segment:

- Click on the "Bend" button.
- Place the mouse cursor on any of the line segments.
- Press and hold the left mouse button.
- As you drag the mouse cursor around the line will bend.
- When you have the line in the desired shape, release the mouse button and the line segment will stay bent.

If you want to revert to the previous shape of the line, click the right mouse button (with the "Bend" button still selected) and the line will go back to the way it was.

To change the scale of the axes, click on the "Select Scale" pull-down field and change to the desired scale.

**To paste the graph into a document (e.g. MS Word)**:

Click the "Copy to Clipboard" button. Then switch to the document and press Ctrl-v or Edit->Paste.

If access to the system clipboard is blocked the button changes to "NO ACCESS" and you have to use this procedure:

- With the graph displayed in your browser window, press the Ctrl-Alt-Shift-PrtSc key combination (that is, all at the same time).
- Go to your document and press Ctrl-v to paste an image of your browser window into the document.
- Use MS Word's picture crop and size adjustment features to get just the graph
included at the right size:
- Click on the graph and a "Picture Toolbar" should appear. If not, right-click the graph a select "Show Picture Toolbar".
- Click the "Crop" button and move the lines around the picture until just the graph is showing.
- Click the "Crop" button again to unselect it and move the lines around the picture until it is the right size.