如图抛物线y= 1/3x﹣mx+n与x轴交于A、B两点,与y轴交于点C(0.﹣1).且对称抽x=l.(1)求出抛物线的解析式及A、B两点的坐标;(2)在x轴下方的抛物线上是否存在点D,使四边形ABDC的面积为3.
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![如图抛物线y= 1/3x﹣mx+n与x轴交于A、B两点,与y轴交于点C(0.﹣1).且对称抽x=l.(1)求出抛物线的解析式及A、B两点的坐标;(2)在x轴下方的抛物线上是否存在点D,使四边形ABDC的面积为3.](/uploads/image/z/10270388-20-8.jpg?t=%E5%A6%82%E5%9B%BE%E6%8A%9B%E7%89%A9%E7%BA%BFy%3D+1%2F3x%EF%B9%A3mx%2Bn%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8EA%E3%80%81B%E4%B8%A4%E7%82%B9%2C%E4%B8%8Ey%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9C%EF%BC%880%EF%BC%8E%EF%B9%A31%EF%BC%89%EF%BC%8E%E4%B8%94%E5%AF%B9%E7%A7%B0%E6%8A%BDx%3Dl%EF%BC%8E%EF%BC%881%EF%BC%89%E6%B1%82%E5%87%BA%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E8%A7%A3%E6%9E%90%E5%BC%8F%E5%8F%8AA%E3%80%81B%E4%B8%A4%E7%82%B9%E7%9A%84%E5%9D%90%E6%A0%87%EF%BC%9B%EF%BC%882%EF%BC%89%E5%9C%A8x%E8%BD%B4%E4%B8%8B%E6%96%B9%E7%9A%84%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%B8%8A%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%E7%82%B9D%2C%E4%BD%BF%E5%9B%9B%E8%BE%B9%E5%BD%A2ABDC%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BA3%EF%BC%8E)
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