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Using the Second Derivative Test to Find Local Extrema

Author: ShaNisaa RaSun

The following problem is solved in this video. It is recommended that you try to solve the problem before watching the video. You can click "Answer" to reveal the answer to the problem.

Problem: Use the Second Derivative Test, if possible, to find any local extrema of the following function. If it is not possible, explain why.\[f(x)=\frac{100}{x}+x\]

A local maximum of \(-20\) at \(x=-10\)

A local minimum of 20 at \(x=10\)

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