Question

4. Determine o par ordenado da equação 2x +
y = 3, sendo x = 4 e marque a alternativa
correta
(A) (3, -1)
(B) (-2, 4)
(C) (4, 5)
(D) (-1,3)​

Answer 1

Resposta:

coloque a expressão em função de x, isole o Y

2x + y = 3

y = 3 - 2x

substitua x por 4

y = 3- 2*4

y = 3 - 8

y = -5

par ordenado (x, y)

                       (4, -5)

Answer 2

Resposta:

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Explicação passo-a-passo:

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