SOLUTION: Here's the question ..... Image Sheet of Paper Start with a piece of paper that is 8 inches long. Fold both sides of the paper up by the sam amount "X". The resulting"troug

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Question 888034: Here's the question .....
Image Sheet of Paper
Start with a piece of paper that is 8 inches long.
Fold both sides of the paper up by the sam amount "X".
The resulting"trough"has cross sections with area [X (8-2X)].
Where should the paper described above be folded to obtain the maximum cross-section area?

Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!
Let y = cross-sectional area of trough:

     

Edwin