Looking at the table, we can identify 4 ordered pairs.
(-1,-6), (2,-6), (5,-6), (8,-6)Note that there is no change in y. We can choose any two points from the table and use the Slope Formula.
m = y_2-y_1/x_2-x_1
We will substitute the points (-1,-6) and (2,-6) for (x_1,y_1) and (x_2,y_2), respectively, to find the slope m.