已知y=y1+y2,y1与x+1成正比例,y2与x成反比例,且当x=1时,y=0,当x=4时,y=9,求y与x之间的函数关系式.
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![已知y=y1+y2,y1与x+1成正比例,y2与x成反比例,且当x=1时,y=0,当x=4时,y=9,求y与x之间的函数关系式.](/uploads/image/z/8334487-55-7.jpg?t=%E5%B7%B2%E7%9F%A5y%3Dy1%2By2%2Cy1%E4%B8%8Ex%2B1%E6%88%90%E6%AD%A3%E6%AF%94%E4%BE%8B%2Cy2%E4%B8%8Ex%E6%88%90%E5%8F%8D%E6%AF%94%E4%BE%8B%2C%E4%B8%94%E5%BD%93x%3D1%E6%97%B6%2Cy%3D0%2C%E5%BD%93x%3D4%E6%97%B6%2Cy%3D9%2C%E6%B1%82y%E4%B8%8Ex%E4%B9%8B%E9%97%B4%E7%9A%84%E5%87%BD%E6%95%B0%E5%85%B3%E7%B3%BB%E5%BC%8F.)
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