Answer :
When given two points you use the slope formula m=y2-y1 over x2-x1
(x1 , y1) and (x 2 , y 2)
(1 , 6) and (8, -1)
m= -1-6 / 8-1
m= -7 / 7
m = -1
slope equals 1
(x1 , y1) and (x 2 , y 2)
(1 , 6) and (8, -1)
m= -1-6 / 8-1
m= -7 / 7
m = -1
slope equals 1