Answer:
6
Explanation:
m=(y2-y1)/(x2-x1) ==> coordinates: (x1, y1), (x2, y2)
m=slope
Visible coordinates: (0, -1), (1, 5) ==> (x1, y1), (x2, y2)
Hence: (x1=0, y1=-1), (x2=1, y2=5)
m=(5-(-1))/(1-0) ==> plug in the values of x1, y1, x2, and y2 into formula
m=(5+1)/1 ==> (subtract by negative number) == (add by positive number)
m=6/1
m=6 ==> slope: 6