The aggregate demand curve slopes downward because the relationship between the price level and real GDP is:Multiple choice question.positivedirectinverse

The aggregate demand curve slopes downward because the relationship between the price level and real GDP is inverse. This means that as the price level decreases, the quantity of real GDP demanded increases, and vice versa. This inverse relationship is due to the wealth effect, interest rate effect, and international trade effect.

Here's a step-by-step explanation:

1. Wealth Effect: When the price level falls, the real value of money holdings increases, which can lead to an increase in consumer spending. This increase in consumer spending leads to an increase in aggregate demand.

2. Interest Rate Effect: A lower price level decreases the interest rate, which encourages spending on investment goods. This leads to an increase in the aggregate demand.

3. International Trade Effect: When the price level falls (and assuming exchange rates are not adjusted), the country's goods become relatively cheaper. This leads to an increase in net exports, which increases aggregate demand.

So, the correct answer to your multiple choice question is "inverse".