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Mathematics 17 Online
OpenStudy (anonymous):

Math help!

OpenStudy (ybarrap):

This is concave up |dw:1436133062471:dw| Can guess what it looks like for concave down? That's why f''(x) tells you if an extrema is a max or a min. If f'(x) < 0 then f'(x)=0 is min, if f''(x> > 0 then f'(x)=0 is a max

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