Differentiation - Stationary Points and Points of Inflection

Differentiation - Stationary Points and Points of Inflection

Secondary 4

Consider the function \(\operatorname{f}\left( x \right)={{x}^{2}}{{e}^{x}}\). Find the \(x\)-coordinate(s) of any max/min points, points of inflection and hence sketch the graph of the function.

Solution:

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Answer:Local maximum: \(x=-2\). Local minimum: \(x=0\).
Points of inflection: \(x=-2\pm\sqrt2\). Sketch shown in the solution.

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