The demand curve for a normal good will slope downward from left to right implying an inverse relationship between the price and the amount of the commodity bought. Third as the inverse supply function the inverse demand function is useful when drawing demand curves and determining the slope of the curve. To calculate the slope of a demand curve take two points on the curve.
To find the slope m m of a curve at a particular point we differentiate the equation of the curve.
Note again that the slope is negative because the curve slopes down and to the right. Note again that the slope is negative because the curve slopes down and to the right. Third as the inverse supply function the inverse demand function is useful when drawing demand curves and determining the slope of the curve. How to Calculate the Slope of a Demand Curve With a Table Solving for Slope with Linear Demand Curve Table.