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Math Help - Finding Equation for Axis of Symmetry?

  1. #1
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    Finding Equation for Axis of Symmetry?

    Find the equation of the axis of symmetry of the parabola gives point (-5,3) and (3,3) equally distant from the vertex on either side of it
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  2. #2
    Super Member Quacky's Avatar
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    If I've understood the dreadful wording, then, for a parabola of the form y=ax^2+bx+c, the the axis of symmetry will be where x=\frac{-b}{2a}
    You could substitute your x and y values into the equations and solve simultaneously.

    If you don't want to do that, then just find the x ordinate of the point which is halfway between (-3,3) and (5,3), as the axis of symmetry will bisect the parabola directly, and so you will find an equation of the form x=[number]
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