Answer:
-9.09
Step-by-step explanation:
Calculation for the price elasticity of demand
Using the midpoint method.
First step is to find the Demand
Demand = (120 - 0)/((120 + 0)/2) = 2
Demand =120/60
Demand =2
Second step is to find the Price
Price = (4 - 5)/((4 + 5)/2)
Price=- 1/4.5
= -0.22
Now let calculate for the price elasticity of demand
Using this formula
Price elasticity of demand =Demand/Price
Let plug in the formula
Price elasticity of demand=2/-0.22
Price elasticity of demand = -9.09
Therefore Using the midpoint method, the price elasticity of demand will be -9.09