Supply Law is an economic principle that states that, all else being equal, an increase in the price of a good or service will lead to an increase in the quantity supplied. This means that producers are more willing to offer more of a product when they can sell it at higher prices, as it often leads to greater profits. Conversely, if the price decreases, the quantity supplied typically falls. This relationship between price and quantity supplied is often illustrated with a supply curve on a graph, where the curve slopes upward from left to right, reflecting the direct correlation between price and supply.