AP Calculus ABeasymcq1 pt
The temperature of a cup of coffee, in degrees Fahrenheit, is modeled by , where is the time in minutes since it was brewed. What is the average rate of change of the temperature between and ?
A.
B.
C.
D.
Explanation
Core Concept
The average rate of change over an interval is found by evaluating . Substituting the values yields , which correctly simplifies to this expression.
Correct Answer
A
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