horizontal line about which some part can be folded or rotated symmetrically or identically
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X= -b / 2a
The axis of symmetry for a parabola of the form y = ax2 + bx + c is x = -b/2a So the axis is x = -2/2*(-3) or x=1/3
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It is x = 0.
there are 4 axis of symmetry in a circle