Who am I and why should you listen to me?I am but a humble servant of mathematics who wishes to lead you out of its darker corners.Mastery is what the master still seeks.Fear not the variables and subscripts of the slope formula seeming to swirl before you like a dizzying vortex. I will lead you through calculating slopes with numbers until you see the pattern underlying the formula.Do not despair though the sine of an angle seems like a magical incantation only Harry Potter could possi