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# Solving multiple questions on the application of derivatives

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1. Consider the function
a) Determine the critical points. (Apply the quotient rule carefully to find derivative.)

b) For what intervals in the domain of f is the function increasing?

c) For what intervals in the domain of f is the function decreasing?

2. Find all maximum and minimum values of the function .

3. The daily cost to manufacture generic trinkets for gullible tourists is given by the cost function:

dollars

a) Determine the marginal cost function.

4. Determine the derivatives of the following functions:

a)
b)
c)
d)

5. The cost of controlling emissions at a firm rises rapidly as the amount of emissions reduced increases. Here is one possible model.

Where q is the reduction in emissions (in pounds of pollutant per day) and C is the daily cost to the firm in dollars of this reduction. Government clean-air subsidies amount ot \$500 per pound of pollutanat removed. How many pounds of pollutant should the firm remove each day in order to minimize the net cost (cost - subsidy)?

6. Suppose that during a prolonged recession, property values depreciated 2% every six months. If a house originally cost \$180000, determine its value at the end of five years.

7. Suppose you want to be earning an annual salary of \$80000 in 10 years. You have been offered a job with a guaranteed 5% increase in salary per year. The initial salary is negotiable. What initial salary should you request to meet your goal of \$80k in 10 years?

https://brainmass.com/math/functional-analysis/solving-multiple-questions-on-the-application-of-derivatives-576092

#### Solution Summary

The solution gives detailed steps on solving multiple questions on the application of derivatives. All formula, rules and calculations are shown and explained.

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