What does a demand curve represent?

• A. A representation of how costs change with production levels.
• B. A graphical depiction of the relationship between price and quantity supplied.
• C. A graphical representation showing the relationship between price and quantity demanded.
• D. A visual guide for consumer preferences over time.

Answer: (C)

A demand curve graphically illustrates the relationship between the price of a good or service and the quantity that consumers are willing and able to purchase at various price levels. This relationship is typically inverted, meaning that as prices decrease, the quantity demanded tends to increase, and vice versa. The downward slope of the demand curve reflects the law of demand, which posits that there is an inverse relationship between price and quantity demanded. This depiction is crucial for understanding consumer behavior in market economics, providing insights into how changes in prices can impact consumer purchasing decisions and overall market demand.