Предмет: Алгебра, автор: UKRAINIAN752

СРОЧНО ПОМОГИТЕ ПЛЗ
Знайдіть координати точки перетину графіків функцій:
у=х+7 та у=5-4х.
Відповідь запишіть десятковими дробами

Ответы

Автор ответа: dgoliuk
0

Відповідь:

(-0,4; 6,6)

Пояснення:

y=x+7       y=5-4x

Праві сторони рівняння рівня, той ліві сторони рівні:

х+7=5-4х

х+4х=5-7

5х=-2

х= \frac{-2}{5}

х= -0,4

Знайдемо y, підставивши у будь-яке рівняння:

y = -0,4+7

y = 6,6

aarr04594: у=?????
Автор ответа: aarr04594
1

Відповідь: фото

Пояснення:

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