If the price of a product increases and the quantity demanded decreases to zero, how would this situation be characterized in terms of elasticity?

When the price of a product goes up and the quantity demanded drops to zero, we say the demand for that product is perfectly elastic. This means that consumers are very sensitive to price changes; even a small increase in price causes them to stop buying the product entirely. For example, if a popular snack suddenly costs twice as much, people might choose not to buy it at all and instead look for a cheaper alternative. In this case, the total revenue for the seller would also drop to zero because no one is buying the product anymore. Understanding this concept helps businesses set prices wisely to avoid losing all their customers.