Answer:
-5/4 or -1.25 is the slope
Explanation:
Slope (gradient) = rise/run or (y1 - y2/x1 - x2)
We will take the points so that we have a whole number:
Therefore the two points are:
(10,0) and (50, -30)
Now the gradient;
(y1 - y2/x1 - x2)
0 - 50/10 - (-30)
-50/40
-5/4
-1.25