Matematika

Pertanyaan

Tentukan persamaan garis melalui titik (3,-4) dan (-7,-2)
Makasiii yg udah jawaabbbb:))

1 Jawaban

  • y-y1/y2-y1 = x-x1/x2-x1
    y-(-4)4/(-2)-(-4) = x-3/(-7)-3
    y+4/(-2)+4 = x-3/(-7)-3
    y+4/2 = x-3/(-10)
    (-10)(y+4) = 2(x-3)
    -10y-40 = 2x-6
    -10y-2x-40-6 = 0
    -10y-2x-46 = 0
    2x+10y+46 = 0
    x+5y+23 = 0

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