x __ A demand curve that illustrates the law of demand has a positive slope is downward sloping shows the quantity demanded decreases as the price falls shows the quantity demanded remains the same when the price rises

The correct answer is: is downward sloping.<br /><br />The law of demand states that, all else being equal, as the price of a good or service increases, the quantity demanded decreases, and vice versa. This relationship between price and quantity demanded is typically represented by a downward-sloping demand curve on a graph.