2. [Own Price Elasticity of Demand]

Given a demand function Q = f (P), the own price elasticity of demand is defined as

=(dQ/dP).(P/Q).

What is the own price elasticity of demand

(a) for the linear demand function Q = 2006P when P = 10.

(b) for the linear inverse demand function P = 1006Q when Q = 10.

(c) for the inverse demand function P = Q6, when (i) Q = 5; (ii) Q = 10.