Learning Data Science, Day 3 – Mathematical Functions

Okay, back to the data science. This is all under a heading titled "DS Math", which kinda terrifies me, not going to lie, because even though I know data science needs mathematics, it's not my strongest subject, and numbers have a tendency to get really wonky on me. Like, I will transpose digits at the drop of a hat. Phone numbers are a regular issue for me, especially if someone's reading them aloud to me. I once wrote "23" in a recipe instead of "2-3" and ended up with 23 tablespoons of water in an icing. Numbers and I? We are not friends. But I can get through this, yes I can. Linear FunctionsSo a function relates one variable to another. Okay. And a linear function has an independent variable and a dependent variable. They use calories and pulse as an example, but I also dislike that example, because it correlates caloric loss with raised pulse, and, okay, yeah, that is a way to burn calories, but ugggh I just hate calorie counting in general, it reminds me too much of all the…