So this right over here, those are the endpoints, and let's figure out the slope of that line. So going from this point to that point, our change in x, which is in a color that you're likely to see, our change in x over here, our change in x is equal to seven. And you could get that by taking three minus negative four. You could literally just count. One, two, three, four, five, six, seven. That's our change in x, and our change in y, when we run over seven, when we go seven to the right, our change in y is equal to negative two. We went from negative one to negative three is equal to negative two.