How to find vertex algebraically

To find the vertex of a parabola, you first need to find x (or y, if your parabola is sideways) through the formula for the axis of symmetry.Steps to Solve · Get the equation in the form y = ax2 + bx + c. · Calculate -b / 2a. This is the x-coordinate of the vertex. · To find the y-. Here is how to use a quadratic’s zeros to find the coordinates of the vertex: • First find the zeros by any method (such as factoring or the Quadratic Formula).To find the vertex of a parabola that is in vertex form y = a (x – h)2 + k: Compare the given equation with y = a (x – h)2 + k and identify the values of h and. This means that in the standard form, y=ax2+bx+c , the expression ?b2a gives the x -coordinate of the vertex. Example: Find the vertex of the parabola.