Which of these linear equations best describes the given model? So this point right over here, this shows that some student, at least self-reported, they studied a little bit more than half an hour, and they didn't actually do that well on the test. Looks like they scored a 43 or a 44 on the test. This right over here shows, or like this one over here is a student who says they studied two hours, and it looks like they scored about a 64 or 65 on the test. And this over here, or this over here, looks like a student who studied over four hours, or they reported that, and they got, looks like a 95 or a 96 on the exam. And so then, and these are all the different students, each of these points represents a student, and then they fit a line. And when they say which of these linear equations best describes the given model, they're really saying which of these linear equations describes or is being plotted right over here by this line that's trying to fit to the data.