Answer: The slope of a line is m=(y2-y1)/(x2-x1) where (x1,y1) and (x2,y2) are the two points on the line.
So we have x1=0,y1=4 and x2=-8 y2=-1 this gives us =(-1-4)/(-8-0) =5/8
I don't know if this helped..
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