Area shaded between the curve and the x axis

[Shazzie]

Just wanted to know if there are any graphics to \'shade\' the area between the a curve and the x or y axis. I know that I can use numerical integration to highlight area but is there a way of just highlighting it without using a numerical method?

[Simon]

Dear Shazzie,

There is no native function for doing this but this is what I would suggest:

1. Select the graph and the right-click option Table of Values
2. Set x-min to be lower than the value that appears on the graph and x-max to be larger than the value that appears on the graph (spot the obvious limitations!).  Click OK.
3. Select the table of values from the Results Box and copy (Ctrl-C).
4. Click Enter Shape on the 2D Graph Toolbar and in the paste (Ctrl-V) your coordinates into the Points table.
5. Scroll to the bottom of the table and add two more points (x-max,0) then (x-min,0).  Click OK.

You could also use inequalities so to shade under y = x use y ≤ x.

Hope this helps,

Simon