Graphically illustrate the difference between a change in aggregate demand and a change in the aggregate quantity demanded of real GDP. Illustrate an increase in aggregate demand and an increase in...

Graphically illustrate the difference between a change in aggregate demand and a change in the aggregate quantity demanded of real GDP. Illustrate an increase in aggregate demand and an increase in the quantity demanded of real GD.

What causes the short- run aggregate supply curve to shift left? Right?