Demand and the determinants of demand (article) | Khan Academy
https://www.khanacademy.org/economics-finance-domain/ap-macroeconomics/basic-economics-concepts-macro/demand/a/lesson-summary-demand-and-the-determinants-of-demand
webThe demand curve shows all of the quantities that a buyer is willing to purchase at all possible prices. In Figure 1, the curve D 1 represents a buyer that would be willing to purchase nothing when the price is $ 9 , 2 units when the price is $ 7 , 6 units with the price is $ 3 , and 9 units if the price was $ 0 .
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