Question
Use the graph of $y=f^{\prime \prime}(x)$ in the accompanying figure to determine the $x$ -coordinates of all inflection points of $f$. Explain your reasoning.
Step 1
Inflection points occur where the second derivative, $f''(x)$, changes sign. This means we are looking for the $x$-values where $f''(x)$ crosses the $x$-axis (i.e., where $f''(x)=0$). Show more…
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