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Class : 11
Unit : Economics


What is demand equation?


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Ans : It is the mathematical expression of the relationship between demand for a commodity and its determinants. Since, there is negative relationship between price of a commodity and its quantity demand. Simple linear demand equation takes the following form: Dₓ = a-b.Pₓ Where, Dₓ = Demand for commodity x Pₓ = Price of commodity x a = autonomous demand b Since, there is negative relationship between price and quantity demand, the slope of demand curve (b) is always negative.
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