Defining a function with ordered pairs is pretty simple! Let’s break it down:

1. What are Ordered Pairs?
   An ordered pair looks like this: $(x, y)$. Here, $x$ is the input you put in, and $y$ is the output you get back.

2. What is a Function?
   A function is a special kind of relationship. In a function, every input $x$ goes to exactly one output $y$. This means you can’t have two pairs with the same $x$ but different $y$ values.

3. Example:
   Look at these pairs: $(1, 2)$, $(2, 4)$, and $(3, 6)$. Each time you have a different $x$, there’s only one $y$ you can get.

This is a cool way to show how numbers connect with each other!