Знайти координати точки перетину графіків функцій y=2x+4 та y=7x-1 - №28667703

Знайти координати точки перетину графіків функцій y=2x+4 та y=7x-1
- Предмет:
  Алгебра
- Автор:
  cookie49
- 6 лет назад

Ответы 1

у = 2х + 4; у = 7х - 1Найдём координаты точки пересечения графиков, не чертя его:2х + 4 = 7х - 12х + 4 - 7х + 1 = 0-5х + 5 = 0-5х = -5х = 1 => у = 7*1 - 1 = 6.ОТВЕТ: координаты точки пересечения графиков -- (1;6).
- Автор:
  jayden627
- 6 лет назад
- 0
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