The profit of a firm is described by the following function: f(Q) = -4Q^3 +48Q^2 - 117Q - 100 where Q is the quantity produced a) Find the stationary points for this function b) Using the first derivative test, find for what value of Q is the profit maximised. c) Find the feasible values of Q where the graph of the profit function is concave up. Show working
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Please specifically and importantly answer for part (b), please ensure that you use first differentiation, not second derivatives. Please dumb it down as much as possible. Greatly Appreciated!!!!
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Please use the first derivative for part (b), not the second derivative. Please ensure to explain why Q = 6.5 is profit maximised.
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