Essay
A cellular phone company has a roaming charge of 32 cents for every minute or fraction of a minute when you are out of your zone.(a) Sketch a graph of the "out-of-your-zone" costs of cellular phone usage as a function of the length of the call.(b) Discuss the discontinuities of this function and their significance to the cell phone user.
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Correct Answer:
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(b) We consider These limits show ...View Answer
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