# How to find the axis of symmetry of a parabola

Posted By Admin @ September 03, 2022

#### Question:

What is the equation of the axis of symmetry of a parabola that passes through the point (-2,5)?

#### Answer:

The axis of symmetry always passes through the vertex of the parabola . The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, y = a x 2 + b x + c , the axis of symmetry is a vertical line x = − b 2 a .

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