Afarmer 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.

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.

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.

i can you with this answer

step-by-step explanation: