Fatima K.

asked • 08/07/18

find the concavity of y'=4y-y^3

 I cant find the concavity of this function but I found the increase/decreae and everything else.

Mark M.

If you found the interval of increase and decrease you must have found the turning point.
If the graph is increase - turning point - decrease the concavity is down.
If the graph is decrease - turning point - increase the concavity is up.


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