Exercise 5.1.1 For each demand equation, compute the elasticity of demand and determine whether or not the demand is elastic, unitary, or inelastic at the indicated price, p. (a) q=p+10,p=10. (b) q=-%p+9,p=l- (c) q+%p24=0,p=3. (d) 0.4q+p=20,p=12. (e) p=l62q2,p=4. (f) 2p=l44q2,p=48