(point slope) 9x+y=18
9x + y = 189x - 9x + y = -9x + 18 y = -9x + 18 y - 18 = -9x + 18 - 18 y - 18 = 9x + 0 y - 18 = 9(x) + 9(0) y - 18 = 9(x + 0) or y = -9x + 18 y + 0 = -9(x) + 9(2) y + 0 = -9(x - 2)