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OpenStudy (anonymous):
its says determine where the function is concave upward and where it is concave downward. f(x)=x^4-6x^3+2x+8
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OpenStudy (anonymous):
find the second derivative
OpenStudy (anonymous):
ok i have that now how do i know if where it concave upward and downward
OpenStudy (anonymous):
concave up means the 2nd derivative is positive, and the opposite for concave down.
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