Science:Math Exam Resources/Courses/MATH100/December 2013/Question 08 (d)/Statement

Let $y=f(x)=63x^{2/7}-14x^{9/7}$. Sketch the graph of $y=f(x)$ and indicate the inflection point(s) on your graph. (The results from parts (a), (b), and (c) may be useful.)