Plug in the relevant values to find x. The vertex form of a parabolas equation is generally expressed as. A Quadratic Equation in Standard Form a b and c can have any value except that a cant be 0Here is an example.
Since the equation is in vertex form the vertex will be at the point h k.
To graph a quadratic equation start by solving for h in vertex form or taking -b divided by 2 times a in standard form. To find the x-intercept let y 0 and solve for x. Y - x 2 - 2 x 3 Solution. The vertex form of a quadratic is in the form f x a xh 2 k where point h k is the vertex.