Answer:
0
Step-by-step explanation:
So, if you look at the equation here, it asks for (y2-y1)/(x2-x1) and it'll give you the answer. This can be done with any two points on a line, and it will give you the slope. If we use the first point as (x1,y1) and the second as (x2,y2) we get (-1+1)/(1-4) or -0/3, or 0.
