Marginal revenue suppose the weekly marginal revenue function for selling x units of a product is given by the graph in the figure.
![48_marginal revenue function for selling.png](https://secure.tutorsglobe.com/CMSImages/48_marginal revenue function for selling.png)
(a) At each of x = 150, x = 250, and x = 350, what is happening to revenue?
(b) Over what interval is revenue increasing?
(c) How many units must be sold to maximize revenue?