Функция y = -4x + 6. Подставляем значения y и решаем уравнение для x: y = -12, -12 = -4x + 6, x = 4.5; y = 0, 0 = -4x + 6, x = 1.5; y = -1, -1 = -4x + 6, x = 1.75; y = -18, -18 = -4x + 6, x = 6; y = -13, -13 = -4x + 6, x = 4.75; y = 15, 15 = -4x + 6, x = -2.25; y = 22, 22 = -4x + 6, x = -4.