Question: Consider the cubic cost function that is defined for x 0 by C ( x ) = a x 3 + b x 2 +

Consider the cubic cost function that is defined for x0 by C(x)=ax3+bx2+cx+d, where the parameters are a>0,b0,c>0, and d>0. Find the intervals where the function is convex and where it is concave. Find also the unique inflection point.
Consider the cubic cost function that is defined

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