An elastic demand curve means that a change in price has a large effect on buying, while an inelastic demand curve means that a price change has less effect on buying.

The demand curve for a perfectly inelastic good is depicted as a vertical line in graphical presentations because the quantity demanded is the same at any price.

CBSE Class 11: Work, Energy & Power - Perfectly Inelastic Collision In this video we will learn about the perfectly Inelastic collision.

Inelastic demand and elastic demand represent the degree of changes in demand due to economic factors such as price changes, income levels, and substitution.