4. Consider a market where the supply function exhibits unitary elasticity: (25 2 Bi), where B 3} 0 is a parameter. The demand function is linear: Qd = a hp, where a: > 0 and b :> [I are parameters. (1.) Show that for any value of B 3} 0 the supply elasticity is: in fact, unitary (show that n = 1). (11.) we have an estimate of the demand elasticity E = 2 at a given equilibrium price p = 4 and quantity.r Q = 8. 'What are the values of the demand parameters a and b? (iii.) Given the information in part (ii.), what is the value of B