Chapter 21 - Using Derivatives To Find Maxima and Minima

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Lesson Summary: 
At a critical point a maximum is when the slope (first derivative) goes from positive to negative and at a minimum the slope goes from negative to positive.
Lesson Inputs: 
Chapter 20 - The Relationship Between Maxima, Minima, and Critical Points
Lesson Outputs: 
Chapter 22 - Concavity

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