如图,正方形ABCD的边长为4、点E在边AB上,且AE=1.点F为边CD上一动点,且DF=m,以A为原点,AB所在直线为x轴建立平面直角坐标系.(1)连接EF,求四边形AEFD的面积s关于m的函数关系式;(2)若直线EF
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![如图,正方形ABCD的边长为4、点E在边AB上,且AE=1.点F为边CD上一动点,且DF=m,以A为原点,AB所在直线为x轴建立平面直角坐标系.(1)连接EF,求四边形AEFD的面积s关于m的函数关系式;(2)若直线EF](/uploads/image/z/2121505-25-5.jpg?t=%E5%A6%82%E5%9B%BE%2C%E6%AD%A3%E6%96%B9%E5%BD%A2ABCD%E7%9A%84%E8%BE%B9%E9%95%BF%E4%B8%BA4%E3%80%81%E7%82%B9E%E5%9C%A8%E8%BE%B9AB%E4%B8%8A%2C%E4%B8%94AE%3D1%EF%BC%8E%E7%82%B9F%E4%B8%BA%E8%BE%B9CD%E4%B8%8A%E4%B8%80%E5%8A%A8%E7%82%B9%2C%E4%B8%94DF%3Dm%2C%E4%BB%A5A%E4%B8%BA%E5%8E%9F%E7%82%B9%2CAB%E6%89%80%E5%9C%A8%E7%9B%B4%E7%BA%BF%E4%B8%BAx%E8%BD%B4%E5%BB%BA%E7%AB%8B%E5%B9%B3%E9%9D%A2%E7%9B%B4%E8%A7%92%E5%9D%90%E6%A0%87%E7%B3%BB%EF%BC%8E%EF%BC%881%EF%BC%89%E8%BF%9E%E6%8E%A5EF%2C%E6%B1%82%E5%9B%9B%E8%BE%B9%E5%BD%A2AEFD%E7%9A%84%E9%9D%A2%E7%A7%AFs%E5%85%B3%E4%BA%8Em%E7%9A%84%E5%87%BD%E6%95%B0%E5%85%B3%E7%B3%BB%E5%BC%8F%EF%BC%9B%EF%BC%882%EF%BC%89%E8%8B%A5%E7%9B%B4%E7%BA%BFEF)
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