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Question
Determine the point(s), (if any), at which the graph of the function has a horizontal tangent.
A)
B)
and 
C)
and 
D)
E) There are no points at which the graph has a horizontal tangent.
Answer
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Related questions
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Suppose the number y of medical degrees conferred in the United States can be modeled by for , where t is the time in years, with corresponding to 1975. Use the test for increasing and decreasing functions to estimate the years during which the number of medical degrees is increasing and the years during which it is decreasing.
A) The number of medical degrees is increasing from 1975 to 1992 and 2000 to 2005, and decreasing during 1992 to 2000.
B) The number of medical degrees is increasing from 1975 to 1991 and 1999 to 2005, and decreasing during 1991 to 1999.
C) The number of medical degrees is increasing from 1975 to 1992 and 1999 to 2005, and decreasing during 1992 to 1999.
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Q:
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B) The function is increasing on the interval and decreasing on the interval .
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Q:
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