Matematika

Pertanyaan

yang tau tolong beri tahu
yang tau tolong beri tahu

0 Comment.

2 Jawaban

  • f(x) = 2x - 5
    f(k) = -15

    Jawaban
    f(k) = -15

    => 2x - 5 = -15
    => 2x = -15 + 5
    => 2x = -10
    => x = -10/2
    => x = -5

    Jadi k = -5

    Jawaban B.

  • jawabannya B
    fx= 2x-5
    f(k) = -15
    f(x) 2x-5= -15
    f(x) 2x= -15+5
    f(x) 2x = -10
    f(x) = -10
    [tex] \frac { - 10}{2} [/tex]
    = -5 jawabannya B

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