Matematika

Pertanyaan

1. H(x) = 7x-3
Find :
a). h(4)
b). h(3m-1)

2. If p (5-3x) = 1 - 4x
Find a). P(x)

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2 Jawaban

  • 1. h(x) = 7x - 3
    h(4) = 7.4 - 3
    = 28 - 3
    = 25

  • 1. h(x) = 7x - 3

    a. h(4) = 7 . 4 - 3
    = 25

    b. h(3m - 1) = 7 (3m - 1) - 3
    = 21m - 7 - 3
    = 21m -10

    2. p(5 - 3x) = 1 - 4x

    a. P(x) = ...?

    misalkan 5-3x = n
    -3x = n - 5
    x = (5 - n)/3

    maka p(n) = 1 - 4 (5-n)/3
    = (3 - 20 + 4n) / 3
    p(x) = (4x - 17)/3

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