1) What is the slope of a line perpendicular to x - 3y = 9? A) m = -2 2) What is the slope of a line parallel to 4x + y = -1? B) m = -4 3) What is the slope of a line parallel to 4x + 2y = 5? C) m = -5 4) What is the slope of a line perpendicular to x - 5y = -10? D) m = -3 5) What is the slope of a line parallel to 10x - 5y = 8? E) m = 2