ANSWER
5/2
Step-by-step explanation
We want to find the correct slope to match with the pair of points given.
The formula for slope is:

From the question:
(x1, y1) = (4, -7)
(x2, y2) = (6, -2)
Therefore, the slope is:

That is the slope of the first pair of points.
Using this method, the others can also be found.