Предмет: Алгебра, автор: Daria836

Помогите пожалуйста! Точка М(1;-1) принадлежит графику функции у=f(x). Найдите значение k, если: а) f(x)=kx-1; б) f(x)=3x-k.

Ответы

Автор ответа: Artem112

$y=kx-1 \ kx=y+1 \ k= frac{y+1}{x} \ k= frac{-1+1}{1} = frac{0}{1} =0 \\ y=3x-k \ k=3x-y \ k=3cdot1-(-1)=3+1=4$

Автор ответа: zozo02000

а к может равняться бесконечности?

Автор ответа: 30112000

спс

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