Supply of Beer
As with demand, supply may be represented not only by a table of numbers, but also
by a diagram or a mathematical equation. Here is a diagram of the estimated
demand for beer. As before, we put the price on the vertical axis, and the quantity
supplied on the horizontal axis.

Figure 4
Remember, also, that when we use the term "supply" we usually mean the entire
supply curve or relationship, while if we refer to the quantity people want to sell at a
particular price, we say the "quantity supplied."
An Interactive Illustration
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