Chapter 3 1/1Version en ligne Economics par Wylie York 1 Group 1 2 Group 2 3 Group 3 4 Group 4 5 Group 5 6 Group 6 7 Group 7 8 Group 8 complementary goods goods that are used with each other, example: cars and tires demand the amount of a G’s & S’s that consumers are willing to buy at different prices demand curve a line that represents the amount of G& S consumers will buy at different prices graph a diagram that shows the relationship between two or more sets of things income the amount of money that a person makes in a certain period of time interchangeable capable of being put in place of one another law of demand states that consumers will buy more of a G or S as the price goes down substitute goods goods that can take the place of one another