Question 92573
The answer is C
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The vertical distance is a negative 36,000 feet which you need to divide by 5,280 ft to find
the number of miles of the descent.  The result of this division is:
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{{{-36000/5280 = -6.818182}}}
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where the negative sign identifies the fact that the plane is dropping instead rising. The
altitude is decreasing, not increasing.
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Slope is defined as the vertical change divided by the corresponding horizontal change.
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The vertical change is -6.818182 and the corresponding horizontal change is 9 miles. The
slope is the division of the horizontal change into the corresponding vertical change which
is:
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{{{-6.818182/9 = -0.757576}}}
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This rounds to a slope of -0.76 which is answer C.
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