In Constructing a Demand Curve for Product X?

demand for A will increase and the quantity of B demanded will increase. ... In constructing a demand curve for product X: the prices of other goods are assumed constant.

What is the demand curve for good X?

When two goods X and Y are substitutes, then as the price of the substitute good Y rises, the demand for good X increases and the demand curve for good X shifts to the right, as in Figure (b).

What is the demand curve for a product?

Demand curve, in economics, a graphic representation of the relationship between product price and the quantity of the product demanded. It is drawn with price on the vertical axis of the graph and quantity demanded on the horizontal axis.