Final answer:
When the product of two variables is equal to a constant, each variable is said to be inversely proportional with the other.
Step-by-step explanation:
When the product of two variables is equal to a constant, each variable is said to be inversely proportional with the other. This means that as one variable increases, the other variable decreases, and vice versa.
For example, let's say we have two variables, x and y, and their product is always equal to 10. If we increase the value of x, the value of y will decrease proportionally to maintain the product of 10. If we decrease the value of x, the value of y will increase proportionally.
This relationship can be represented as xy = k, where k is the constant.