Численный ответ
x1 = 3.00000000000000 y1 = 9.00000000000000 x2 = -2.00000000000000 y2 = 4.00000000000000
x1 = 3.00000000000000 y1 = 9.00000000000000 x2 = -2.00000000000000 y2 = 4.00000000000000