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331-ch9-tut

# 331-ch9-tut - ECON 331 Tutorial Questions Onve Variable...

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Unformatted text preview: ECON 331 Tutorial Questions: Onve Variable Optimization (Chapter 9) SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 1) The profit equation for a taco stand is given by P ( x ) = -0.4 x 2 + 100 x- 100, where x is the number of tacos sold, and P ( x ) is the profit in dollars. Use the first-derivative test to find when relative extrema occur. 1) 2) The cost equation for a bakery is given by C ( x ) = 10( x- 2) 2- 120( x- 2) + 450, where x is the number of doughnuts made (in dozens), and C ( x ) is the cost in dollars. Use the first-derivative test to find when relative extrema occur. 2) 3) The cost equation for a cookie store is given by C ( x ) = x 3- 6 x 2 + 250, where x is the number of cookies made (in dozens) and C ( x ) is the cost in dollars. Use the first-derivative test to find when relative extrema occur. 3) 4) A new book has its monthly revenue given by R ( x ) = 40 x x 2 + 25 where x is the number of months after its release and...
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331-ch9-tut - ECON 331 Tutorial Questions Onve Variable...

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