Normally the demand curve will have a ______ shape

Explanation:

In economics, the demand curve typically has a downward-sloping shape. This reflects the law of demand, which states that as the price of a good or service decreases, the quantity demanded by consumers increases, and vice versa. 

The downward slope indicates that there is an inverse relationship between price and quantity demanded, meaning consumers are willing to buy more at lower prices and less at higher prices.