Предмет: Математика, автор: yulia722001

Постройте график уравнения, запишите координаты точки пересечения графика с осью ординат:  1)-3х+2у=4;  2)4х+3у=12;  3) х+2у=-4.

Ответы

Автор ответа: massg
0
ось ординат это ось "У" при пересечении с осью "У" х=0, подставить в уравнение
х=0 и найти значение У.

1. -3*0+2у=4, у=2, А(0;2)
2. 4*0+3y=12, y=4, B(0;4)
3. 0+2*y=-4, y=-2, C(0;-2)
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