题目

如图，在方格纸中（小正方形的边长为1），反比例函数的图象与直线的交点A、B均在格点上，根据所给的直角坐标系（O是坐标原点），解答下列问题：（1）求这个反比例函数的解析式；（2）若点C在已知的反比例函数的图象上，△ABC是以AB为底的等腰三角形，请写出点C的坐标． 答案：【答案】（1）y=（2）（2，2）或（﹣2，﹣2）【解析】（1）设这个反比例函数的解析式是y＝，把A点的坐标代入，即可求出答案；（2）设C点的坐标为（x，），根据两点之间距离公式和AC＝BC得出方程，求出x即可．（1）设这个反比例函数的解析式是y＝，由图象可知：点A的坐标为（﹣1，﹣4），代入得：k同义转换 （每题1分，共5分）小题1: As we all know, art must be based on life, or it won’t be appreciated.="As" we all know, art must be _________ in life, or it won’t be appreciated.小题2:To conclude, it is the best 3D film that I have ever seen.="In" __________, it is the best 3D film that I have ever seen.小题3:There have been notable advances in scientific development over the past ten years.="There" have been notable advances in scientific development over the past _________小题4:Famous experts are often invited to CCTV to make comments on the situations in Iraq.="Famous" experts are often invited to CCTV to make _________ on the situations in Iraq. 小题5:We climbed to the top of the mountain for the purpose of watching sunrise.="We" climbed to the top of the mountain with the ___________ of watching sunrise.