# what is a functional relationship?

A functional relationship refers to a specific type of relationship between two variables where one variable (known as the independent variable) directly affects the other variable (known as the dependent variable). In other words, there is a consistent and predictable pattern between the values of the independent variable and the resulting values of the dependent variable. This relationship can be represented mathematically through a graph or equation, and it is often used to model real-world phenomena and make predictions.