Matematika

Pertanyaan

pliss tolong jawab cepat ya makasih
pliss tolong jawab cepat ya makasih

1 Jawaban

  • g) x + 2y + 6 = 0
    2y = - x - 6
    m = - 1/2 = - ½
    tegak lurus
    m1 . m2 = - 1
    - ½ . m2 = - 1
    m2 = - 1 ÷ - ½ = 2
    y - y1 = m (x - X1)
    y + 2 = 2(x - 4)
    y = 2x - 8 - 2
    y = 2x - 10

    h) 3x + y = 4
    y = - 3x + 4
    m = - 3/1 = - 3
    tegak lurus
    m1 . m2 = - 1
    - 3 . m2 = - 1
    m2 = ⅓
    y - y1 = m (x - X1)
    y - 5 = ⅓(x - 1)
    y = ⅓ x - ⅓ + 5
    y = ⅓ x + 14/3 (dikali 3)
    3y = x + 14