This is a graph showing price and total output in the short and long run. A graph has total economic output on the x-axis, and price on the y-axis. A vertical line represents the supply in the long run, and a line that curves upwards represents the supply in the short run. The lines intersect at a point. According to this graph, how does supply behave in the short run and long run? Output remains constant. Output increases. Output cannot be predicted. Output reacts differently.