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Anonymous
Y does down the middle but y does not
Wiki User
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The line of symmetry of y = 0 is x = 0.
There isn't one!
the line of symmetry would occur at x=0
y=x2-12x+7
y = 3x2+2x-1 Line of symmetry: x = -1/3 Vertex coordinate: (-1/3, -4/3)