eb8ddb…: “Amid the autumn town”

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Practice Problems: Points of Inflection

1 :

Consider the function $\sage {p1fdisp}$ . What is the sum of $x$ -values of the points of inflection? $\answer {\sage {p1ans}}$

Remember that the points of inflection occur where the second derivative changes sign. This is easiest to determine by making a sign chart of the second derivative.