Answer: The downward slope to the right of the demand curve shows that there is an inverse relation between the demand for a commodity and its price.
Explanation: It is observed that with the increase in the price of a commodity, its demand decreases on that price , given that commodity is the normal one. There are many factors operating behind it, and we don't need to discuss those here.
At the same time, with the decrease in the price of that particular commodity, the demand for it increases. This illustrates the inverse nature of the price and quantity of a commodity with respect to each other.