Answer:
Step-by-step explanation:A function is a mathematical rule that assigns each value of the independent variable to exactly one value of the dependent variable. In other words, a function is a relationship between two sets of values, where each input value (independent variable) is mapped to a unique output value (dependent variable). The independent variable is usually denoted by x, while the dependent variable is denoted by y. The function is often expressed as y = f(x), where f is the name of the function. The values of x that can be used as input are called the domain of the function, while the values of y that can be output by the function are called the range of the function.