The graph of g(x) is the graph of f(x)=x+6 reflected across the x-axis.Which equation describes g?
Ag(x)=−x−6
Bg(x)=−x+6
Cg(x)=x−6
Dg(x)=−6x−6
Ag(x)=−x−6
Bg(x)=−x+6
Cg(x)=x−6
Dg(x)=−6x−6