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December 20, 2014

December 20, 2014

Posted by **jack** on Sunday, October 31, 2010 at 9:30pm.

f(x) = -2x^2 + 4x + 3

I don't know how to use the First derivative test to find it.

- calculus -
**Reiny**, Sunday, October 31, 2010 at 9:43pmtake the first derivative and set it equal to zero.

-4x + 4 = 0

x = 1

sub that back into the function.

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