A perfectly inelastic demand curve exhibits
A) zero responsiveness to changes in price.
B) zero quantity demanded when there is a slight change in price.
C) a change in quantity demanded that is proportional to the change in price.
D) a change in quantity demanded that is always twenty percent of the change in price.

Question

Quizplus · Accepted Answer

A perfectly inelastic demand curve means that the quantity demanded does not change at all in response to changes in price. Therefore, the answer is A, which states that there is zero responsiveness to changes in price.

A Perfectly Inelastic Demand Curve Exhibits