Matematika

Pertanyaan

tolong di jawab ya pakai cara!
tolong di jawab ya pakai cara!

1 Jawaban

  • 1. C (lihat yg depan nya beda)

    2. f(x) = 2x-1
    f(0)= 2×0-1 = -1
    f(2)= 2×2-1 = 3
    f(3)= 2×3-1 = 5
    f(5)= 2×5-1 = 9
    B. {-1,3,5,9}

    3. f(x)=-2x+3
    f(-2) = -2×(-2) +3 = 7
    f(-1) = -2×(-1) +3 = 5
    f(0) = -2×0 +3 = 3
    f(1) = -2×1 +3 = 1
    f(2) = -2×2 +3 = -1
    D. {-1,1,3,5,7}

    4. f(x)= -2x^2 + 4x - 1
    f(-1) = -2×(-1)^2 + 4(-1) -1 = -7
    f(0) = -2×0^2 + 4.0 -1 = -1
    f(1) = -2×1^2 + 4.1 -1 = 1
    C.{ -7,-1,1 }

    5. n(A) = 3
    n(B) = 2
    pemetaan = 3^2 = 9