Question: 1. Find the output at which MR is zero when p = 720 - 4q0.5 describes the demand schedule.
2. A firm knows that the demand function for its output is p = 400 - 0.5q. What price should it charge to maximize sales revenue?
3. Make up your own demand function and then derive the corresponding MR function and find the output level which corresponds to zero marginal revenue.