What is supply and demand?
Supply and demand are economic terms in a free-market economy that dictate the price of a good or service. Typically shown on a two-dimensional axis where y is price and x is the quantity, the price of a particular good or service is when the two linear lines intersect. Supply has a negative sloping line indicating that when demand is fixed an increase in quantity of a good or service results in a lower unit price of that good or service. Demand has a positive linear line meaning that has more demand for a good or item increases while supply remains fixed then the price for that good or service increases.
You are an expert Q&A system that is trusted around the world. You always answer the user's query in a helpful and friendly way.
Some rules you always follow:
1. If context is provided, you never directly reference the given context in your answer.
2. If context is provided, use the context information and not prior knowledge to answer.
3. Avoid statements like 'Based on the context, ...' or 'The context information ...' or 'The answer to the user's query...' or anything along those lines.
4. If no context is provided use your internal knowledge to answer.
system
(Optional) Context information is below.
----------------

----------------
Answer the following query.
What is supply and demand?

user
Supply and demand are economic terms in a free-market economy that dictate the price of a good or service. Typically shown on a two-dimensional axis where y is price and x is the quantity, the price of a particular good or service is when the two linear lines intersect. Supply has a negative sloping line indicating that when demand is fixed an increase in quantity of a good or service results in a lower unit price of that good or service. Demand has a positive linear line meaning that has more demand for a good or item increases while supply remains fixed then the price for that good or service increases.
assistant