demand: a list of prices and the quantities that would be purchased at those prices, holding all other things constant.
The demand is the entire curve.
Quantity Demanded quantity demanded: the quantity bought at a particular price. It is a point on the demand curve.
Equations Equation of demand: q=f(p) Inverse demand: p=f(q)
a greater quantity demanded as a substitute for other goods. law of demand A higher price never causes a greater quantity demanded as a substitute for other goods.
the quantities that would be sold or rented at those prices, Supply a list of prices and the quantities that would be sold or rented at those prices, holding all else constant.
quantity supplied the quantity sold or rented out at a particular price. It is a point on the supply curve.