Предмет: Алгебра, автор: ByRotator

Принадлежит ли графику функции y=4/x точка: A(2;4); B (-4;1); C (0,5;8); D(-0.5;-8)???

Ответы

Автор ответа: sedinalana

y=4/x
A(2;4) 4/2=2 2≠4 не принадлежит
B(-4;1) 4/(-4)=-1 -1≠1 не принадлежит
C(0,5;8) 4/(0,5)=8 8=8 принадлежит
D(-0,5;-8) 4/(-0,5)=-8 -8=-8 принадлежит

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