Final answer:
The aggregate supply curve represents the relationship between the price level and the level of real GDP in an economy.
Step-by-step explanation:
The aggregate supply curve represents the relationship between the price level and the level of real GDP in an economy. It shows how producers respond to changes in the price level by adjusting the quantity of goods and services they are willing to supply. In the short run, the aggregate supply curve slopes upward, indicating that higher prices lead to higher output. In the long run, the aggregate supply curve is vertical, indicating that changes in the price level do not affect the economy's productive capacity.