The graph of the derivative y = f '(x) is shown below. At which of the x-values does the original function, f(x), have an inflection point? y f '(x) x 1 3 5 7 9 Select one: a. 1 b. 5 c. 0 d. None of the above e. 3
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This happens when the second derivative f''(x) changes sign. Looking at the graph of f''(x), we can see that it changes sign at x = 3 and x = 5. Show more…
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