25. Revenue is the product of the price and the quantity. However, as price increases for an item, the demand (quantity sold) generally decreases. That is, if the price goes up, the number of units sold will go down and the revenue can decrease. The revenue function of a product is given by r(p)= -400p' + 25000P where p is the unit price and r is the total revenue. a) Factor -400p2 + 25000 p Hint: use GCF b) What are the x intercepts? c) What is the vertex? Hint: vertex is located in the middle of x intercepts d) Sketch the graph e) What is the revenue if the price per item is set at $20.00? f) What is the price for the maximum revenue