Final answer:
A function is a relation between a set of inputs and outputs, represented by an equation or set of rules. Functions can be represented using tables, graphs, or equations, and are used in various mathematical concepts.
Step-by-step explanation:
In mathematics, a function is a relation between a set of inputs and a set of outputs, where each input is related to exactly one output. It is often represented by an equation or a set of rules. Functions can be represented in various ways, such as using tables, graphs, or equations.
For example, consider the function f(x) = 2x + 3. This function takes an input value x, multiplies it by 2, and then adds 3 to get the output value.
Functions are fundamental to many mathematical concepts and are used in various fields, including algebra, calculus, and statistics. A function is a relation between a set of inputs and outputs, represented by an equation or set of rules.