Final answer:
A demand curve shifting to the right represents an increase in demand, indicating that consumers are willing to purchase more of the good at every price level.
Step-by-step explanation:
When the demand curve shifts to the right, it indicates that the demand is stronger. This means that at every given price level, consumers are willing to purchase more of the good or service, signaling an increase in demand. To clarify with an example, if we consider a car market, an increase in income might lead consumers to purchase more cars. Because they can now afford to buy more at any given price, the entire demand curve for cars shifts to the right. This does not necessarily mean that the quantity supplied has increased, but rather the quantity demanded at each price point is higher.