Does quantity demanded affect price?

As we can see on the demand graph, there is an inverse relationship between price and quantity demanded. Economists call this the Law of Demand. If the price goes up, the quantity demanded goes down (but demand itself stays the same). If the price decreases, quantity demanded increases.

What does it mean when quantity demanded is?

Definition: Quantity demanded is the quantity of a commodity that people are willing to buy at a particular price at a particular point of time. ... Quantity supplied is the quantity of a commodity that producers are willing to sell at a particular price at a particular point of time.