My parabola

A parabola is a function that is significant because-- instead of going straight-- it curves. It can be demonstrated by throwing something up and watching it curve down.
I have a series of freckles on my face that plot out a parabola. I'm quite proud of them. They make me feel like such a nerd but that's a good thing.

A parabola
Source

My parabola. The purple spots are my freckles (they didn't show up that well) and the lines are the x and y axes. Like my mustache earrings?