Предмет: Алгебра, автор: gavrilovaann2018


у 303. Принадлежат ли графику функции y = -0,5х точки А (0; 1), б ( - 1,0.5) с (2,-1) д (4,-2)
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Ответы

Автор ответа: svetazuna
13

y = -0,5х,

А (0; 1)

1 = -0,5 * 0,

1 ≠ 0  --  точка не принадлежит,

В (- 1; 0,5)

0,5 = -0,5 * (-1),

0,5 = 0,5  --  точка принадлежит,

С (2; -1)

-1 = -0,5 * 2,

-1 = -1  --  точка принадлежит,

Д (4; -2)

-2 = -0,5 * 4,

-2 = -2  --  точка принадлежит графику функции

gavrilovaann2018: спасибо, но уже поздно
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