Distance function

Okay kiddo, imagine you have a toy car and you want to measure how far it can go. That’s kind of like a distance function - it helps us figure out how far apart two things are.

A distance function is a special rule that tells us the exact distance between two points. Think of it like a GPS for math. It helps us find the distance between two points on a graph.

Imagine you have a treasure map with two X’s on it. One X is where you are standing and the other X is where the treasure is hidden. The distance function will help you figure out how far away the treasure is from where you are. It’s like a superpower that helps you measure distance without even moving!

So, a distance function helps us measure the distance between two points, just like we might measure the distance between two spots on a treasure map. It’s a tool that helps us see how far apart things are.