Предмет: Алгебра, автор: shura344

Обчисли, не виконуючи побудови, координати точки перетину графіків лінійних функцій:y=x+2 і y=3x−2.

Ответы

Автор ответа: kkcomfy31

Ответ:

$y = x + 2 \: \: y = 3x - 2 \\ y = x + 2 \\ y = x - 2 \\ x + 2 = 3x - 2 \\ x = 2 \\ y = 2 + 2 \\ y = 4 \\ (x \: \: y) = (2 \: \: 4) \\ 4 = 2 + 2 \\ 4 = 3 \times 2 - 2 \\ 4 = 4 \\ 4 = 4 \\ (x \: \: y) = (2 \: \: 4)$

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