tolong jawab ya makasihh

y-y1 per y2-y1 = x-x1 per x2-x1
y-4 per 3-4 = x-1 per -2-1
y-4 per -1 = x-1 per -3
-1 (x-1) = -3 (y-4)
-x + 1 = -3y + 12
-x + 3y = 12-1
-x + 3y = 11
karna x nya min maka kita kalikan -1
x-3y=-11
x-3y+11=0

jawabannya D