Briefly explain the features that would define quality ...

A saddle point is a stationery point that is neither a maximum nor a minimum. Here the difference between the product of pure second partial derivative (second derivative of a function with respect to one variable) and square of mixed partial derivative is less than zero. Total revenue = Px = (100-0.01x)(x = 100x-0.01x2. Profit = Revenue-cost ................
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