What is a Function? A function relates an input to an output. It is like a machine that has an input and an output. And the output is related somehow to the input. " f (x) = ... " is the classic way …

Sep 29, 2025 · Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent …

Let's explore how we can graph, analyze, and create different types of functions.

Functions define the relationship between two variables, one is dependent and the other is independent. Function in math is a relation f from a set A (the domain of the function) to …

Oct 6, 2025 · A function is a special relation or method connecting each member of set A to a unique member of set B via a defined relation. Set A is called the domain, and set B is called …

In simple words, a function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range. A function is generally …

Here you will learn about functions in algebra, including what functions are, how to calculate with function machines and exponential functions. Students will first learn what is a function as part …

The simplest definition is: a function is a bunch of ordered pairs of things (in our case the things will be numbers, but they can be otherwise), with the property that the first members of the …

Use this page to revise the following concepts of functions: A function is a relation such that for each x -value there is only one corresponding y -value. In other words, a function cannot …

Aug 6, 2024 · In mathematics, a function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output.