A farmer is tracking the amount of wheat his land is yielding each year. He finds that the function f(x) = −x2 + 20x + 75 models
the crops in pounds per acre over x years. Find and interpret the average rate of change from year 5 to year 15.
2 answers:
Answer:
Average rate of change: 0
Interpretation: No increment in yield from year 5 to year 15.
Step-by-step explanation:
The function that models the yield is:



The average rate of change of f(x) from x=a to x=b is given by the formula;

The average rate of change from year 5 to year 15 is:



Interpretation: There has not been any increment in yield from year 5 to year 15.
Answer:
the answer is The crop yield did not change from year 5 to year 15
Step-by-step explanation:
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