Economics Today 18th Edition by Roger LeRoy Miller

تمرين 3

The diagram at the next column depicts the demand curve for "miniburgers" in a nationwide fast-food a. What is the price elasticity of demand along the range of the demand curve between a price of $0.20 per miniburger and a price of $0.40 per miniburger? Is demand elastic or inelastic over this range?
b. What is the price elasticity of demand along the range of the demand curve between a price of $0.80 per miniburger and a price of $1.20 per miniburger? Is demand elastic or inelastic over this range?
c. What is the price elasticity of demand along the range of the demand curve between a price of $1.60 per miniburger and a price of $1.80 per miniburger? Is demand elastic or inelastic over this range?