Having trouble deriving the elasticity of demand for this problem:Consider two demand functions: a) Q(p) = 50 – 10p and b) Q(p) = 2/p. Foreach demand function, derive the elasticity of demand εD, and describe how |εD | changes (if it changes) as you move down the demand curve (i.e., as Q increases).

Question

Having trouble deriving the elasticity of demand for this problem:

Consider two demand functions: a) Q(p) = 50 – 10p and b) Q(p) = 2/p. For
each demand function, derive the elasticity of demand εD, and describe how |εD | changes (if it changes) as you move down the demand curve (i.e., as Q increases).