What Is Vertex Form? While the standard quadratic form is a x 2 + b x + c = y, the vertex form of a quadratic equation is y = a (x h) 2 + k. In both forms, y is the y -coordinate, x is the x -coordinate, and a is the constant that tells you whether the parabola is facing up (+ a) or down (a).
The calculator will convert standard to vertex form for a function. Get graphs and steps involved in calculations.