But nearly all supply curves share a basic similarity: they slope down from left to right up from left to right up from right to left down from right to left

But nearly all supply curves share a basic similarity: they slope up from left to right. A supply curve is a graphic representation of the relationship the cost of a good or service and the quantity that is supplied of it has. A common graphical representation has price on the left vertical axis and the quantity supplied on the horizontal axis. Different changes in the production or cost of a good or service can have an affect on the supply curve.

answer; coefficient of correlation;