Question

Find the equation of a parabola which is symmetric about y axis

Answer 1

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=ax2+bx+c , the axis of symmetry is a vertical line x=−b2a . Example 1: ... The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola.