Write the Quadratic class. Your implementation must include a constructor that has three integer parameters that represent a, b, and c, in that order. You may assume that the values of the parameters representing a is not zero. It must also include a method getXVertex that calculates and returns the x-coordinate of the Parabola vertex, and a method isOnParabola that returns true if the point represented by its two parameters (x and y, in that order) is on the Quadratic and returns false otherwise. Your class must produce the indicated results when invoked by the code segment given above. You may ignore any issues related to integer overflow.