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October 7, 2015
Posted by **DUE TOMORROW NEED HELP!** on Sunday, December 12, 2010 at 8:02pm.

Please help!

- AP Calculus AB -
**Damon**, Sunday, December 12, 2010 at 8:20pmf = x (y-x)

but y = 8-x

so

f = x (8-2x) = 8x - 2x^2

df/dx = 8 - 4 x

zero when x = 2