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he law of demand states that other factors being constant (cetris peribus), price and quantity demand of any good and service are inversely related to each other. When the price of a product increases, the demand for the same product will fall

In its standard form a linear demand equation is Q = a - bP. That is, quantity demanded is a function of price. The inverse demand equation , or price equation , treats price as a function g of quantity demanded: P = f(Q). As from the equation

Here if the price increase demands falls and a is a constant that is the least quantity demanded.

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