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Home > CALC > Chapter 7 > Lesson 7.4.4 > Problem 7-208

7-208.

Yvette claims that f(x) = x1/3 has no points of inflection because f ''(x) is never equal to zero. Do you agree or disagree? If you disagree, explain the error in Yvette's reasoning. Homework Help ✎

What happens to f ''(x) on either side of an inflection point?