“@khanacademy:the answer to this week’s #KACalculusChallenge. pic.twitter.com/xk4kOTlWkI” bet @LensOnSport solved this in his sleep! #mathguru
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Indeed
@JPatenall , a max or min occur when the derivative hits zero *and* changes sign... So, the answers are -4 and 3.
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@khanacademy@meadow_uncapher @rachelconn13Thanks. Twitter will use this to make your timeline better. UndoUndo
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@khanacademy min at x=-4 and max at x=3@MrOBrien314 -
@ASKhan99@khanacademy only 1/2 credit. No justification given. Ha! - 1 more reply
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@khanacademy -4 and 3. Do I win something?Thanks. Twitter will use this to make your timeline better. UndoUndo
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@khanacademy x=-4 is a min and x=3 is a max. I totally calculus.#mathwhizThanks. Twitter will use this to make your timeline better. UndoUndo
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“
@khanacademy:#CriticalNumbers. RT the answer to this#KACalculusChallenge. pic.twitter.com/yPNbMCrmhL” Local min at x=-4. Local max at x=3
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@khanacademy -4,-1 and 3Thanks. Twitter will use this to make your timeline better. UndoUndo
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At x=-4,-1 and 3. F(x) is max or min at f'(x)=0 “
@khanacademy: RT the answer to this week’s#KACalculusChallenge. pic.twitter.com/FtYcLBqqqx”
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