如图,点A(m,m+1),B(m+3,m-1)都在反比例函数y=kx的图象上.(1)求m,k的值;(2)如果M为x轴上一点,N为y轴上一点,以点A,B,M,N为顶点的四边形是平行四边形,试求直线MN的函数表达式.
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![如图,点A(m,m+1),B(m+3,m-1)都在反比例函数y=kx的图象上.(1)求m,k的值;(2)如果M为x轴上一点,N为y轴上一点,以点A,B,M,N为顶点的四边形是平行四边形,试求直线MN的函数表达式.](/uploads/image/z/6794851-67-1.jpg?t=%E5%A6%82%E5%9B%BE%2C%E7%82%B9A%EF%BC%88m%2Cm%2B1%EF%BC%89%2CB%EF%BC%88m%2B3%2Cm-1%EF%BC%89%E9%83%BD%E5%9C%A8%E5%8F%8D%E6%AF%94%E4%BE%8B%E5%87%BD%E6%95%B0y%3Dkx%E7%9A%84%E5%9B%BE%E8%B1%A1%E4%B8%8A%EF%BC%8E%EF%BC%881%EF%BC%89%E6%B1%82m%2Ck%E7%9A%84%E5%80%BC%EF%BC%9B%EF%BC%882%EF%BC%89%E5%A6%82%E6%9E%9CM%E4%B8%BAx%E8%BD%B4%E4%B8%8A%E4%B8%80%E7%82%B9%2CN%E4%B8%BAy%E8%BD%B4%E4%B8%8A%E4%B8%80%E7%82%B9%2C%E4%BB%A5%E7%82%B9A%2CB%2CM%2CN%E4%B8%BA%E9%A1%B6%E7%82%B9%E7%9A%84%E5%9B%9B%E8%BE%B9%E5%BD%A2%E6%98%AF%E5%B9%B3%E8%A1%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2%2C%E8%AF%95%E6%B1%82%E7%9B%B4%E7%BA%BFMN%E7%9A%84%E5%87%BD%E6%95%B0%E8%A1%A8%E8%BE%BE%E5%BC%8F%EF%BC%8E)
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