Supply & Demand In supply (and demand) problems, y is the number of items the supplier will produce (or the public will buy) if the price of the item is r. For a particular product, the supply equation is y = 2x + 366 and the demand equation is y= -4x + 528 What is the intersection point of these two lines? Enter answer as an ordered pair (don't forget the parentheses). What is the selling price when supply and demand are in equilibrium? price = S /item What is the amount of items in the market when supply and demand are in equilibrium? number of items =