Matematika

Pertanyaan

tolong di jawab no.38 & 39 ya plisssss soalnya besok mau dikumpulin
tolong di jawab no.38 & 39 ya plisssss soalnya besok mau dikumpulin

1 Jawaban

  • 38) 3x + 4y = 6
    4y = - 3x + 6
    m = - ¾
    sejajar m1 = m2 = - ¾
    pers garis
    y - y1 = m ( x - x1)
    y - 6 = - ¾ ( x + 2)
    y = - ¾ x - 3/2 + 6 ( dikali 4)
    4y = - 3x - 6 + 24
    4y + 3x = 18
    3x + 4y = 18 ( D )

    39) 4x - 4y + 10 = 0
    - 4y = - 4x - 10
    m = - 4/- 4
    m = 1
    sejajar m1 = m2 = 1
    y - y1 = m ( x - x1 )
    y - 5 = 1 ( x + 2)
    y = x + 2 + 5
    y = x + 7
    y - x - 7 = 0 ( C )