What does a downward-sloping demand curve mean about how buyers in a market will react to a higher price?

people will buy less of the good.

Explanation:

Law of demand states that there is an inverse or negative relationship between the price of the goods and the quantity demanded for a good by the consumers.

Other factors remains the same, as the price of the goods increases then as a result the quantity demanded for that good decreases and on the other hand, as the price of the goods decreases then as a result the quantity demanded for a good increases.

A market with a higher prices are generally have a lower quantity demanded for the good because the price is not affordable.