You can put this solution on YOUR website! Just a change in position from the reference graph of f(x). Up 12 units and to the right by 3 units. The function, g(x) is in standard form, h=3 and k=12. Standard Form for vertical parabola is .
See carefully that while f(x) has a minimum point for vertex, now g(x) has a=-1, so now g(x) has its vertex as a MAXIMUM point, so parabola opens downward.