A solar panel manufacturer estimates that the profit y (in dollars) generated by producing x solar panels per month is given by the equation s(x) = 8x² + 0.8x² - 0.002x³ - 4000.
a) What is the profit if 1000 solar panels are produced per month?
b) What is the maximum profit?
c) At what production level is the profit maximized?
d) None of the above.
