I've got a postcard my friend.
A:at
B:from
C:in
如图,在直角坐标系中,△ABC的各顶点坐标为A(﹣1,1),B(2,3),C(0,3).现以坐标原点为位似中心,作△A′B′C′,使△A′B′C′与△ABC的位似比为23.则点A的对应点A′的坐标为____