Excel 2007 : Dynamic Line Graph with Non-Contiguous Range

Hello,
I named a range of non-contiguous cells by selecting them holding the Ctrl button then typing the name in the Name box. Some of the cells I selected do not have data in them yet, but when they do, I would like them to show up on my line graph. First of all, how could I make such a graph? Second, the cells I have selected all have a simple math formula in them. I do not know if this will affect things or not. The formula takes another number and multiplies it by 2 in order to get the number that I want on the graph. Thank you in advance for anyone who responds to my question. I have been going crazy trying to figure this out.

Hello
Take a look at the attachment. Is this the kind of thing you're looking for?

Hope this helps.
DBY