It's a comprehensive graph involving weight/sjw scale. It takes into account a minimum and a maximum on the x axis. i.e. tumblerinas tend to be fatter than feminists. i.e. shitlords tend to be skinnier than trolls (but unlike trolls we still do have morals so we are slightly higher up the white knight scale). You'll see this types of graph in advanced classes for physics for your undergrad/grad degree. Typically because you are involving a min/max on an x/y graph (something a linear line can not do) for a log set.