2y = 5x + 4 (4, 2) y = 5x2 + 4 comparing with y = mx + e m = 52 Since they are perpendicular m1m2 = -1 m2 = −1m1 = -1 52 = -1 x 25 The equator of the line is thus y = mn + c (4, 2) 2 = -25(4) + c 21 + 85 = c c = 185
y = -25x + 185 5y = -2x + 18 or 5y + 2x - 18 = 0
