Hey there!
In this problem, we have two points, and our goal is to find the slope. In order to do this, we can use the slope given two points formula:
y2-y1/x2-x1
Now, we can plug in our values from the two points:
7-3/-2-(-1) =
4/-2+1 =
4/-1
That means -4 is our slope. The slope is defined as rise over run, so our rise is four, and our run is -1. Since slope is also defined as up/right, that negative denominator dictates the "right", and since it's negative, it goes left instead of right.
Hope this helps