Collinearity

Collinearity is when you have three or more points that line up in a straight line. It's like when you draw a line from one point to another point and then to another point, and all the points are on that same line. It's kind of like playing connect the dots, but all the dots are on the same line.

Think of it like this: imagine you have two ants standing on a piece of paper, and you draw a line between them. If you put a third ant on that same line, then all three ants are collinear. They all share the same line, like they are holding hands in a straight line.

This kind of thing is important in things like math and science, where we need to know if certain points or objects are in a straight line. If you know that certain points are collinear, that can help you figure out other things like how far apart they are or their exact location in space. So collinearity can be very helpful for solving problems and understanding the world around us.