The statement that are important when representing functions are:
It is important to explain what your variable represents and to include units.
Functions may depend on more than one variable.
<h3>What is are functions?</h3>
A function can be described as the relation between a set of inputs that have one output each. it help to display the relationship between inputs in a case whereby each input is related to exactly one output.
We can denote the function by f(x) where x is the input.
