Matematika

Pertanyaan

Diketahui fungsi h(x) = px + q
Jika h(3) = -8 dan h(-2) = 2 Tentukan:
a. Nilai p dan q
b. Nilai fungsi h (-5)
c. Nilai fungsi h (x-2)
d. Nilai m jika h (m)= -14 ?

1 Jawaban

  • h(3) = 3p + q = -8
    h(-2)= -2p + q = 2
    ________________ -
    5p = -10
    p = -2
    q = -2
    H( x) = -2x -2
    h(-5) = 10-2 =8
    H (x-2) = -2(x-2) -2
    = -2x +4 -2
    = -2x + 2
    h(m) = -2m -2 = -14
    -2m = -12
    m = 6

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