The slope of the demand curve is not the same as the price elasticity of demand because the slope of a demand curve ( )
A: compares percentage changes in quantity demanded and price.
B: compares absolute changes in quantity demanded and price.
C: obeys the law of demand.
D: is not constant when the demand curve is linear.
A: compares percentage changes in quantity demanded and price.
B: compares absolute changes in quantity demanded and price.
C: obeys the law of demand.
D: is not constant when the demand curve is linear.
举一反三
- For a horizontal demand curve, A: the slope is undefined, and the price elasticity of demand is equal to 0. B: the slope is equal to 0, and the price elasticity of demand is undefined. C: both the slope and price elasticity of demand are undefined. D: both the slope and price elasticity of demand are equal to 0.
- A straight-line demand curve with negative slope intersects the horizontal axis at 200 tons per week. The point on the demand curve at which the price elasticity of demand is 1 corresponds to a quantity demanded A: of 0 tons. B: of 100 tons. C: of 200 tons. D: that would be negative if a negative quantity demanded were possible.
- According to the Law of Demand, the demand curve for a good will A: shift leftward when the price of the good increases. B: slope downward. C: shift rightward when the price of the good increases. D: slope upward.
- Price elasticity of demand along a linear, downward-sloping demand curve increases as price falls. A: 正确 B: 错误
- When measured along a linear downward-sloping demand curve, the price elasticity: