Answer:
The points are at (-1.5, 6) and (2.5, -6).
m = (-6 - 6)/(2.5 - (-1.5)) = -12/4 = -3
y - 6 = -3(x + 3/2)
y - 6 = -3x - 9/2
y = -3x + 3/2
2y = -6x + 3
6x + 2y = 3