A line graph showing the interaction of aggregate supply and aggregate demand." A graph showing the interaction of aggregate supply and aggregate demand. The x-axis is labeled Real Output and is marked Q1 through Q3 at equal intervals. The y-axis is labeled Price Level and is marked P1 through P3 at equal intervals. There are four lines on the graph. They are labeled AS1, AS2, AD1, and AD2. AS1 and AS2 generally parallel each other and curve up and to the right. AD1 and AD2 generally parallel each other and curve down and to the right. AS1 intersects AD1 at Q2, P1. AS1 intersects AD2 at Q3, P2. AS2 intersects AD1 at Q1, P2. AS2 intersects AD2 at Q2, P3." Refer to the figure. If the economy is in equilibrium, at a real output of Q3 then Multiple Choice the equilibrium price level is P2. aggregate demand must be AD1. aggregate demand is AD2 and aggregate supply is AS2. aggregate supply could be either AS1 or AS2, depending on the level of aggregate demand