The demand function for a certain children bicycle is given by x=10(((50-p)/p))^(1/2).
where x is the quantity demanded per week and p (0 < p < 50) is the unit price in dollars.
(a) Evaluate the elasticity at 40.
(b) Should the unit price be raised slightly from 40 in order to increase revenue? Enter 1 for Yes or 2 for No .
(c) When is the demand unitary.
(d) What is the maximum revenue?