Matematika

Pertanyaan

Tentukan grafik dari (4x + 3y = 30
(x + y = 9

1 Jawaban

  • x + y = 9
    9 + y = 9
    y = 9-9
    y = 0
    0 + y = 9
    y = 9-0
    y = 9 (0, 9)

    y =0 => x + y = 9
    x +0= 9
    x = 9 (9, 0)

    x =0 => 4(0) +3y = 30
    3y = 30
    y = 30/3
    y = 10 (0, 10)
    y =0 => 4x + 3(0) = 30
    4x = 30
    x = 30/4

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