据给定条件,求一次函数解析式( 1)函数y=ax+7的图像经过直线y=4-3x和y=2x-1的交点(2)正比例函数的图像与一次函数的图象交于点(3,4),两图像与y轴围成的三角形面积为二分之十五,求这两个
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![据给定条件,求一次函数解析式( 1)函数y=ax+7的图像经过直线y=4-3x和y=2x-1的交点(2)正比例函数的图像与一次函数的图象交于点(3,4),两图像与y轴围成的三角形面积为二分之十五,求这两个](/uploads/image/z/4956022-46-2.jpg?t=%E6%8D%AE%E7%BB%99%E5%AE%9A%E6%9D%A1%E4%BB%B6%2C%E6%B1%82%E4%B8%80%E6%AC%A1%E5%87%BD%E6%95%B0%E8%A7%A3%E6%9E%90%E5%BC%8F%EF%BC%88+1%EF%BC%89%E5%87%BD%E6%95%B0y%3Dax%2B7%E7%9A%84%E5%9B%BE%E5%83%8F%E7%BB%8F%E8%BF%87%E7%9B%B4%E7%BA%BFy%3D4-3x%E5%92%8Cy%3D2x-1%E7%9A%84%E4%BA%A4%E7%82%B9%EF%BC%882%EF%BC%89%E6%AD%A3%E6%AF%94%E4%BE%8B%E5%87%BD%E6%95%B0%E7%9A%84%E5%9B%BE%E5%83%8F%E4%B8%8E%E4%B8%80%E6%AC%A1%E5%87%BD%E6%95%B0%E7%9A%84%E5%9B%BE%E8%B1%A1%E4%BA%A4%E4%BA%8E%E7%82%B9%EF%BC%883%2C4%EF%BC%89%2C%E4%B8%A4%E5%9B%BE%E5%83%8F%E4%B8%8Ey%E8%BD%B4%E5%9B%B4%E6%88%90%E7%9A%84%E4%B8%89%E8%A7%92%E5%BD%A2%E9%9D%A2%E7%A7%AF%E4%B8%BA%E4%BA%8C%E5%88%86%E4%B9%8B%E5%8D%81%E4%BA%94%2C%E6%B1%82%E8%BF%99%E4%B8%A4%E4%B8%AA)
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