Chapter 23 - Using Second Derivatives to Determine Concavity

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Lesson Summary: 
The second derivative can be used to determine when a function is concave up and concave down. When $f\,''(x)\gt 0$ then the function is concave up and when $f\,''(x)\lt 0$ then the function is concave down.
Lesson Inputs: 
Chapter 22 - Concavity
Lesson Outputs: 
Chapter 24 - Inflection Points

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