In this problem, p is in dollars and q is the number of units.   (a) Find the elasticity of the demand function pq = 36 at p = 4. (b) How will a price increase affect total revenue?

Suppose demand is given by p = 1600 − x. Find the maximum revenue.

Suppose the demand function for a product is given by the function: D(q) = −0.016q+56 Find the Consumer's Surplus corresponding to q = 1, 450 units. (Do no rounding of results until the very end of your calculations. At that point, round to the nearest tenth, if necessary. It may help you to sketch the demand curve, which crosses the horizontal at q = 3,500.) Answer: dollars