persamaan garis lurus jika di ketahui informasi melalui (-1,0) dan (3,-8)

(-1,0) & (3,-8)
(x1,y1) & (x2,y2)

y - y1 = x- x1
____ ____
y2-y1 x2- x1

y-0 = x-1
___ ___
8-0 3-1

y-0 = x-1
___ ___
8 2

2(y-0) = 8(x-1)
2y = 8x-8
8x+2y+8 = 0
8x+2y = -8

smoga membantu