如图所示，在长和宽分别是、的矩形纸片的四个角都剪去一个边长为的正方形．

17．本题满分7分．

解分式方程：．

16．本题满分7分．

（1） 在1996年、2000年、2004年这三届奥运会上，我国运动员获得奖牌总数最多的一届奥运会是________年．

 （2） 在1996年、2000年、2004年这三届奥运会上，我国运动员共获奖牌___________枚．

（3）根据以上统计，预测我国运动员在2008年奥运会上能获得的奖牌总数大约为_________枚．

15．本题满分7分．                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

下图是我国运动员在1996年、2000年、2004年三届奥运会上获得奖牌数的统计图．

请你根据统计图提供的信息，回答下列问题：󰀡

（3） 若将绕点按顺时针方向旋转后得到A₁B₁C₁，则A点对应点A₁的坐标是_________．

（2）若将向右平移2个单位得到，则点的对应点的坐标是______；

如图，已知:

（1） AC的长等于_______．