Question

and he's helping his friend Eddie is helping his friend understand how to identify functions from sets of ordered pairs which set of ordered pairs pictured above could he show his friend as an example of a set that represents y as a function of x?​

Answer 1

Answer:

First of all, let's define what a function is:

A function $f$ from a set $A$ to a set $B$ is a relation that assigns to each element $x$ in the set $A$ exactly one element $y$ in the set $B$. The set $A$ is the domain (also called the set of inputs) of the function and the set $B$ contains the range (also called the set of outputs).

The ordered pairs has been plotted below. As you can see, the set B is the only relation that meets the requirements of the concept of function because that relation assigns each element $x$ in the set $A$ exactly one element $y$ in the set $B$. For the other sets, at least one element $x$ in the set $A$ matches to two or more elements $y$ in the set $B$.