Final answer:
When there is an increase in demand, the demand curve shifts to the right, resulting in higher quantities demanded at any given price.
Step-by-step explanation:
When there is an increase in demand, the demand curve shifts to the right, resulting in higher quantities demanded at any given price. This means that consumers are willing to buy more of a product or service at every price level. For example, if the demand for smartphones increases, the demand curve will shift to the right, indicating that consumers are willing to purchase more smartphones at each price point.