4.1 Individual Demand 4.1.1 Price Changes Price-consumption curve-A curve tracing (the utility- maximizing combinations of two goods as the price of one changes. 4.1.2 Individual Demand Curve Individual demand curve-Curve relating the quantity of a good that a single consumer will buy to its price.4.1 Individual Demand 4.1.1 Price Changes Price-consumption curve-A curve tracing (描绘) the utility￾maximizing combinations of two goods as the price of one changes. 4.1.2 Individual Demand Curve Individual demand curve-Curve relating the quantity of a good that a single consumer will buy to its price