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пересекаются ли прямые а) у= 2,7х - 6 и у=2,7х+5 б)у=-6х+8 и у=8х-6 если прямые пересикаются то вычислите координаты точки пересечения
Ответы 1
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a) угловые коэффиценты равны, значит не пересекаются;б) -6x+8=8x-6; -14x=-14; x=1; y=-6+8=2; (1;2)
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Автор:
aubrey - 6 лет назад
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