At the most basic level, Supply Curve and Demand Curve represent the relationship between quantity and price of a certain good or service. The Supply Curve shows how much of a good or service is willing to be supplied at different prices, while the Demand Curve shows how much of that same good or service is wanted by consumers at different prices. By connecting these two points, one can easily understand the market forces behind the supply and demand in an economy – as prices go up, producers supply more, while consumers demand less, and vice versa. These curves also provide insight into how different external factors like taxes, subsidies and seasonality can influence prices. Ultimately, understanding these curves is essential for businesses to plan for the future and make sound decisions about pricing strategy.