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Mathematics 10 Online
OpenStudy (anonymous):

Help with Increasing and decreasing values and concavity. When I went to graph the function Y=x^(2/3)-x, I somehow only found one critical value in the first derivative equation y=2/3(x)^(-1/3)-1, yet my graphing calculator shows that there is a interval where the function is actually increasing from (0,1), can someone show me how to find the other critical value?

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