5 thoughts on “Worked example: Inflection points from first derivative | AP Calculus AB | Khan Academy

  • October 27, 2016 at 1:57 pm
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    Your explanation is much more explicit than my teacher's!

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  • March 13, 2017 at 1:25 am
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    Thank you!! This video helped me a lot!!!!

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  • October 24, 2017 at 3:47 am
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    ima make multiple accounts to like this video

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  • September 22, 2018 at 1:39 pm
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    You are teaching in wrong concepts

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  • November 30, 2018 at 7:49 am
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    this is wrong because I was thought that for a derivative graph, below the x-axis is where the slope is negative?

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