Exam 4: Exponential and Logarithmic Functions
Exam 1: Functions, graphs, and Limits427 Questions
Exam 2: Differentiation84 Questions
Exam 3: Applications of the Derivative122 Questions
Exam 4: Exponential and Logarithmic Functions122 Questions
Exam 5: Integration and Its Applications88 Questions
Exam 6: Techniques of Integration46 Questions
Exam 7: Functions of Several Variables113 Questions
Exam 8: Trigonometric Functions60 Questions
Exam 9: Probability and Calculus36 Questions
Exam 10: Series and Taylor Polynomials104 Questions
Exam 11: Differential Equations77 Questions
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Find the exponential function
that passes through the two given points (0,7)and (6,8).

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(Multiple Choice)
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Correct Answer:
B
Find the y-value at the relative minima,and use a graphing utility to check your result.

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A
Find an equation of the tangent line to the graph of
at the point (64,3).

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Correct Answer:
C
Carbon-14 (14C)dating assumes that the carbon on the Earth today has the same radioactive content as it did centuries ago.If this is true,then the amount of 14C absorbed by a tree that grew several centuries ago should be the same as the amount of 14C absorbed by a similar tree today.A piece of ancient charcoal contains only 24% as much of the radioactive carbon as a piece of modern charcoal.How long ago was the tree burned to make the ancient charcoal? (The half-life of 14C is 5715 years.)Round your answer to the nearest integer.
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Solve the exponential equation.Give answers correct to 3 decimal places.

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Locate any relative extrema and inflection points of the function

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With an annual rate of inflation of 4% over the next 10 years,the approximate cost of goods or services during any year in the decade is given by
where t is the time (in years)and P is the present cost.The price of an oil change for a car is presently $24.95.Estimate the price 10 years from now.Round your answer to the nearest cent.

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Use a graphing utility to graph the function
Be sure to choose an appropriate viewing window.

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Use the properties of logarithms to write the expression
as a sum,difference,or multiple of logarithms.

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Find the relative minima,and use a graphing utility to check your results.

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