B. Indonesia

Pertanyaan

Tentukan gradien dari garis
1.5x + 10 y - 4 = 0
2.2y- 8x = 5
3.4y = 8x - 6
4.- 7x - 5y + 3 = 0

2 Jawaban

  • Tentukan gradien dari garis
    1.5x + 10 y - 4 = 0
    2.2y- 8x = 5
    3.4y = 8x - 6
    4.- 7x - 5y + 3 = 0

    JAWAB

    1. 5x + 10 y - 4 = 0
    maka a = 5 dan b = 10
    m = -a/b = -5/10 = -½

    2. 2y- 8x = 5
    maka a = -8 dan b = 2
    m = -a/b = -(-8)/2 = 4

    3. 4y = 8x - 6 → 4y - 8x = -6
    maka a = -8 dan b = 4
    m = -a/b = -(-8)/4 = 2

    4. - 7x - 5y + 3 = 0
    maka a = -7 dan b = -5
    m = -a/b = -(-7)/(-5) = 7/(-5) = -7/5
  • 1. m = -x/y = -5/10 = -1/2
    2. m = -x/y = 8/2 = 4
    3. m = 8/4 = 2
    4. m = -x/y = 7/-5 = -1[tex] \frac{2}{5} [/tex]

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