Which quadratic function is represented by the graph?
A: [tex]f(x)=-1/3(x+3)^2+3[/tex]
B: [tex]f(x)=-1/3(x-3)^2+3[/tex]
C: [tex]f(x)=-3(x+3)^2+3[/tex]
D: [tex]f(x)=-3(x-3)^2+3[/tex]
