Supply & Demand In supply (and demand) problems, q is the number of items the supplier will produce (or the public will buy) if the price of the item is p. For a particular product, the supply equation is p = 6q - 1190 and the demand equation is P = - 3q + 700 What is the intersection point of these two lines? What is the selling price when supply and demand are in equilibrium? price = $ Vitem What is the amount of items in the market when supply and demand are in equilibrium? number of items = Question Help: Video Submit