Round your final answers to four decimal places if necessary. Suppose that the average yearly cost per item for producing x items of a business product is
94
C(x) = 15+ –
The three most recent yearly production figures are given in the table.
Year
0
2
Prod. (x) 6.6 7.2 7.8
Estimate the value of x'(2) and the current (year 2) rate of change of the average cost.
x'(2) =
per year.
; The rate of change of the average cost is
W​