What is consistent with an individual demand curve that slopes down from left to right?

An individual demand curve that slopes down from left to right indicates an inverse relationship between price and quantity demanded. As the price of a good decreases, consumers are willing to purchase more of it, reflecting the law of demand. This downward slope often results from the substitution effect, where consumers opt for cheaper alternatives, and the income effect, where lower prices increase consumers' purchasing power. Overall, this behavior illustrates the typical response of consumers to changes in price.