25.如圖,在Rt△ABC中,∠C=90°,AC=2,BC=4,AC∥x軸,A、B兩點(diǎn)在反比例函數(shù)y=
(x>0)的圖象上,延長(zhǎng)CA交y軸于點(diǎn)D,AD=1.
(1)求該反比例函數(shù)的解析式;
(2)將△ABC繞點(diǎn)B順時(shí)針旋轉(zhuǎn)得到△EBF,使點(diǎn)C落在x軸上的點(diǎn)F處,點(diǎn)A的對(duì)應(yīng)點(diǎn)為E,求旋轉(zhuǎn)角的度數(shù)和點(diǎn)E的坐標(biāo).