Вопрос школьника по предмету Алгебра
При каком значении параметра b функции y=3x+b и y=-x^2-7b принимают одно и то же значение в точке x=2 ?
Ответ учителя по предмету Алгебра
y=3x+b и y=-x²
-7b
y(2)=6+b и y(2)=-4-7b
6+b=-4-7b
8b=-10
b=-1.25
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