y function: u = x0.64x2.36. He h by $1.00. Calculate t increases

Suppose that the manufacturer of a gas clothes dryer has found that when the unit price is p dollars, the revenue R (in dollars) is R(p) = -5p² + 10,000p. (a) At what prices p is revenue zero? (b) For what range of prices will revenue exceed $1,500,000? (a) At what prices p is revenue zero? The revenue equals zero when p is $ (Use a comma to separate answers, but do not use commas in any individual numbers.) (b) For what range of prices will revenue exceed $1,500,000? (Type your answer in interval notation. Round to the nearest cent as needed.).

Find f'(x) for the given function. 9x f(x) = -X_ X- 1 f'(x) =