Write the relation shown in the diagram as a set of ordered pairs then identify the kind of relation as to function or not

Answer:
An ordered pair, commonly known as a point, has two components which are the x and y coordinates.
Just like a relation, a function is also a set of ordered pairs; however, every x-value must be associated to only one y-value.
Each element of the domain is being traced to one and only element in the range. However, it is okay for two or more values in the domain to share a common value in the range. That is, even though the elements 5 and -5 in the domain share the same value of 25 in the range, this relation is still a function.