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6 October, 00:27

The graph of which function has an axis of symmetry at x = 3? f (x) = x2 3x 1 or f (x) = x2 - 3x - 3 or f (x) = x2 6x 3 or f (x) = x2 - 6x - 1

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  1. 6 October, 00:42
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    For

    ax^2+bx+c

    the axis of symmetry is - b/2a

    first one

    -3/2=3, nope

    2nd one

    3/2=3? nope

    3rd one

    -6/2=3? nope

    fourth

    6/2=3? yes

    answer is last one or

    f (x) = x^2-6x-1
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