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21 April, 03:42

Using number 5 and the axis of symmetry, find the vertex. y=3x^2-12x+5

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  1. 21 April, 06:18
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    vertex : (2, - 7)

    Step-by-step explanation:

    find the vertex. y=3x^2-12x+5

    line of symmetry: x = - b/2a

    x = - (-12) / (2*3) = 2

    y = 3*2^2 - 12*2 + 5 = 12 - 24 + 5 = - 12 + 5 = - 7

    vertex: (2, - 7)
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