如图,在直角坐标系中,已知点A(﹣3,﹣1),点B(﹣2,1),平移线段AB,使点A落在A1(0,﹣1),点B落在点B1,则点B1的坐标为 . 答案:(1,1) 解:通过平移线段AB,点A(﹣3,﹣1)落在(0,﹣1), 即线段AB沿x轴向右移动了3格. 如图,点B1的坐标为(1,1).Social studies is one of _____.
[ ]A. favorites B. my favorite subject C. my favorite subjects D. my favorite