A quantitative expression, rule, or law that describes the link between an independent variable and a dependent variable (the dependent variable).
In mathematics, functions occur widespread, and they are essential for defining physical links in the sciences.
A function is a type of rule that generates one output for a single output.
This is represented by the equation y=x2. Any inputs for x result in an output for y. Given that x is the input value, we would state that y is a result of x.
