Can equilibrium price and quantity change in a graph?

Of course, when modeling changes in a graph it is possible to see changes in both equilibrium price and quantity when shifting both demand and supply (depending on how much each curve shifts). In the interactive graph below, move both demand and supply in different directions.

What is equilibrium price?

Equilibrium price (EP) refers to the market price at which the quantity of a product demanded is equal to its quantity supplied. It is a stable price that has no tendency to change unless there are changes in the demand and/or supply. The purpose of finding the it is to identify the ideal price agreed upon for buying and selling.

How can we predict the equilibrium price and quantity?

There is a four-step process that allows us to predict how an event will affect the equilibrium price and quantity using the supply and demand framework. Step one: draw a market model (a supply curve and a demand curve) representing the situation before the economic event took place.