- Implicit Differentialon & Related Rates Course Packet on computing elasticity of demand using Implicit differentiation The demand function for Wally Winka's Neverending Lollipops is given by p = (12 - x)In(x + 8) where p is the wholesale unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. Compute the price, p, when x = 6. Do not round your answer. Price, p = 15.8343439777 Use implicit differentiation to compute the rate of change of demand with respect to price, p, when x = 6. Do not round your answer. Rate of change of demand, x' = -0.452389 Compute the elasticity of demand when x = 6. Do not round your answer. 7 Elasticity of Demand = 3 + 7 In(14) X