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Deriving a demand curve

Demand curve is a graphical representation of quantities demanded against price. It is normally derived from the demand schedule. From the demand schedule of dresses we may derive a demand curve by plotting quantities on x-axis and prices on the y-axis, and title at the top.The diagram below illustrates this concept.

From the diagram on the demand curve, it can be observed that as prices of commodity increases, demand decreases and vice versa. The demand curve slopes downwards from left to right.