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Quynh Anh
8 tháng trước

Cho hàm số y = f(x) . Khi f(2) = -6 ta hiểu sao

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ctd0309
8 tháng trước

Ta có hàm số y=f(x)

Khi f(2)=-6 ta hiểu x=2 và y=-6

⇒ Hàm số nghịch biến 

 

trunghieu777
8 tháng trước

Đáp án:

 

Giải thích các bước giải:

Khi f(2)=-6

⇒ Khi x=2 thì y=f(x)=-6 hay khi x=2 thì y=-6

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ý nghĩa của biểu tượng chữ vạn

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