The demand curve demonstrates what happens when a product is demanded by customers. A demand function refers to an event that can affect the demand curve.
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Price elasticity of demand is equal to the instantaneous slope of the demand curve, or the slope of the tangent line at any point on the demand curve. So if the demand curve is represented by a straight downward sloping line, then yes, price elasticity of demand is equal to the slope of the demand curve. Otherwise, the slope at any point on the curve is changing, and you can find the it by taking the derivative of the demand curve function, which will find the Price elasticity of demand at any single point. Thus, the Price Elasticity of Demand changes at different points on the demand curve.
the market demand curve is the curve related to the demand of the commodity demanded by the group of people to the at different price.
The upward movement of the demand curve indicates the rising demand of the product, whereas downward movement of the demand curve indicates falling demand.
To calculate marginal revenue from a demand curve, you can find the slope of the demand curve at a specific quantity using calculus or by taking the first derivative of the demand function. The marginal revenue is then equal to the price at that quantity minus the slope of the demand curve multiplied by the quantity.
bez when demand function have price on y-axis, its mean that price have the inverse relation to the demand, in other words price lead to demand curve.