Question
Profit Let the cost function for a firm be given by $C(x)=$ $5+8 x,$ and let the demand equation be the same as that in Exercise $50 .$ Find the value at which the profit is maximum.
Step 1
The demand equation is given as $p(x) = 20 - 2x$. To find the revenue function, we multiply the price function by the quantity, $x$. So, $R(x) = p(x) \cdot x = (20 - 2x) \cdot x = 20x - 2x^2$. Show more…
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