Single variable demand function

A single variable demand function expresses the quantity demanded of a good or service as a function of one independent variable, typically its price. It can be represented mathematically as Qd = f(P), where Qd is the quantity demanded and P is the price. This function illustrates how changes in price affect consumer demand, often showing an inverse relationship: as price decreases, quantity demanded typically increases, and vice versa. Such functions are fundamental in microeconomic analysis for understanding consumer behavior and market dynamics.