Matematika

Pertanyaan

Gradien garis AB melalui titik A(5,-7) dan B (-3,11)

1 Jawaban

  • y-(-7) x-5
    ------- = -----
    11-(-7) -3-5
    y+7 x-5
    ------- = -----
    18 -8
    -8y+(-56) = 18x+(-90)
    -8y = 18x-34
    y = -18/8x -34/8
    m = -9/4

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