( (x, y) \rightarrow (-x, -y) ) [ E' = (-5, -1) ]
: Bayangan titik ( E(-4, 2) ) dirotasi ( 180^\circ ) dengan pusat O. (Jawab: ( (4, -2) ) — tinggal balik tanda semua)
For practice problems and detailed walkthroughs, you can refer to these types of materials: Practice Sets : Document-based exercises on
$$x' = x + a$$ $$y' = y + b$$