** Using WeBWorK **

Thanks!

You are right, I am doing something more complicated than derivatives. I am trying to write a modified question similar to Stewart, 6.2, problems 19-30 which ask about volumes of rotation based on the same graph. I would like to choose the questions randomly.

The above suggestions will help. I now need to fix my graph, but that's another story (and probably one easier to research).

Thanks again,
S.M.