The following graph shows three total expenditure lines for an economy at three different price levels. AE20 corresponds to the price level of 120; AE100 corresponds to the price level of 100; AE140 corresponds to the price level of 140. The black line, which starts in the bottom left corner, is a 45-degree line illustrating the set of points for which real GDP and total expenditure are equal.
The level of equilibrium output at a price level of 100 is.
On the following graph, plot the aggregate demand curve that results from varying the price level from 100 to 120 to 140, holding all else equal?