1. Calculus Practice
What are the derivatives of the following?
a. y = 2X2
dy/dx = ______________
b. y = abXc
dy/dx = ______________
c. U = XaYb
du/dx = ______________;
du/dy =
______________
d. Total Benefit = 100X - 2X2
Marginal Benefit =
______________
e. Total Cost = -100X + 2X2
Marginal
Cost = ______________
What are the maxima/minima of the following?
f. Total Benefit = 100X - 2X2
Maximum =
______________
g. Total Cost = -100X + 2X2
Minimum = ______________
h. Suppose a firm had the total benefit and total cost curves as
in d and e. What quantity level would maximize profits (where
profits are total benefits - total costs)?
__________________________
You may solve this either by taking the derivative of
the profit function, or by setting the marginal benefits=marginal
costs, but I recommend your getting practice with both.
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