What is the demand curve faced by enterprises?

Demand curve is a curve showing the relationship between price and demand, which refers to the table or curve of the quantity of goods that buyers are willing to buy at each price demand curve level under the same other conditions. Where demand cannot be observed. The demand curve can appear in any shape, and the demand curve that can conform to the demand theorem can only tilt to the lower right.

The demand curve usually takes the price as the vertical axis (Y axis) and the demand as the horizontal axis (X axis). In a straight demand curve, the demand price elasticity at the center is equal to 1, the demand price elasticity at the upper part is greater than 1, and the demand price elasticity at the lower part is less than 1.