Exam 10: Derivatives
Exam 1: Linear Equations and Functions245 Questions
Exam 2: Quadratic and Other Special Functions120 Questions
Exam 3: Matrices230 Questions
Exam 4: Inequalities and Linear Programming119 Questions
Exam 5: Exponential and Logarithmic Functions109 Questions
Exam 6: Mathematics of Finance131 Questions
Exam 7: Introduction to Probability180 Questions
Exam 8: Further Topics in Probability and Data Description114 Questions
Exam 9: Derivatives249 Questions
Exam 10: Derivatives172 Questions
Exam 11: Derivatives Continued139 Questions
Exam 12: Indefinite Integrals120 Questions
Exam 13: Definite Integrals - Techniques370 Questions
Exam 13: A: Definite Integrals - Techniques370 Questions
Exam 14: Functions of Two or More Variables122 Questions
Exam 15: Algebraic Concepts 240 Questions
Exam 15: Algebraic Concepts 374 Questions
Exam 15: Algebraic Concepts 496 Questions
Exam 15: Algebraic Concepts 599 Questions
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A function and its graph are given. Use the graph to estimate the locations of any vertical asymptotes.

(Multiple Choice)
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A rectangular box with a square base is to be formed from a square piece of metal with 30-inch sides. If a square piece with side x is cut from each corner of the metal and the sides are folded up to form an open box, the volume of the box is
. What value of x will maximize the volume of the box? 
(Multiple Choice)
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The following figure shows the graph of revenue function
and cost function
. At which of the four x-values shown is the profit largest? 
(Multiple Choice)
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Use the graph shown in the figure and identify points from A through I that satisfy the given condition.
and

(Multiple Choice)
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The running yard for a dog kennel must contain at least 400 square feet. If a 15-foot side of the kennel is used as part of one side of a rectangular yard with 400 square feet, what dimensions will require the least amount of fencing? Round your answer to the nearest feet.
(Multiple Choice)
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Suppose that in an election year, the proportion p of voters who recognize a certain candidate's name t months after the campaign started is given by
. After how many months is the proportion maximized?
(Multiple Choice)
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An inferior product with a large advertising budget sells well when it is introduced, but sales fall as people discontinue use of the product. Suppose that the weekly sales S are given by
where S is in millions of dollars and t is in weeks. After how many weeks will sales be maximized?
(Multiple Choice)
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A function and its graph are given. Use the graph to estimate the locations of any horizontal asymptotes.

(Multiple Choice)
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For the given function find the relative maxima, and sketch the graph. You may check your graph with a graphing utility. 
(Multiple Choice)
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Suppose the average costs of a mining operation depend on the number of machines used, and average costs, in dollars, are given by
,
, where x is the number of machines used. Find the critical values of
that lie in the domain of the problem.
(Multiple Choice)
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A function and its graph are given. Use the second derivative to locate all x-values of points of inflection on the graph of
. Check these results against the graph shown.
(Multiple Choice)
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For the given function, find all intervals of x-values where the function is decreasing. 
(Multiple Choice)
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For the revenue function given by
find the maximum average revenue.
(Multiple Choice)
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Use the sign diagram for
to determine the largest interval on which f (x) decreases, where
and
. 
(Multiple Choice)
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For the cost function
, show that average costs are minimized at the x-value where
by finding this minimum. Round your answer to two decimal places. (Note:
)
(Multiple Choice)
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Analytically determine any relative minima. Round your answer to two decimal places. 
(Multiple Choice)
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The number of milligrams x of a medication in the bloodstream t hours after a dose is taken can be modeled by
,
. Find the t-value at which x is maximum. Round your answer to two decimal places.
(Multiple Choice)
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From a tract of land, a developer plans to fence a rectangular region and then divide it into two identical rectangular lots by putting a fence down the middle. Suppose that the fence for the outside boundary costs $6 per foot and the fence for the middle costs $4 per foot. If each lot contains 4,600 square feet, find the dimensions of each lot that yield the minimum cost for the fence. Round your answer to two decimal places.
(Multiple Choice)
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Suppose the average costs of a mining operation depend on the number of machines used, and average costs, in dollars, are given by
,
, where x is the number of machines used. Over what interval in the domain do average costs decrease?
(Multiple Choice)
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Use the sign diagram for
to determine x-values at which relative maxima occur, where
and
. 
(Multiple Choice)
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