• {-4,-3,-2,-1,0,1,2}
    f(x)=2x-3

    f(-4)=2(-4)-3
    =-8-3
    =-11

    f(-3)=2(-3)-3
    =-6-3
    =-9

    f(-2)=2(-2)-3
    =-4-3
    =-7

    f(-1)=2(-1)-3
    =-2-3
    =-5

    f(0)=2(0)-3
    =-3

    f(1)=2(1)-3
    =-1

    f(2)=2(2)-3
    =4-3
    =1

    {-4,-3,-2,-1,0,1,2} → {-11,-9,-7,-5,-3,-1,1}

    -4 → -11
    -3 → -9
    -2 → -7
    -1 → -5
    0 → -3
    1 → -1
    2 → 1

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