如图,在平面直角坐标系中,抛物线与x轴 交于点A(-1,0)和点B(1,0),直线y=2x-1 与y轴交于点C,与抛物线交于点C,D. (1)求抛物线的解析式; (2)求点A到直线CD的距离; (3)平移抛物线,
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![如图,在平面直角坐标系中,抛物线与x轴 交于点A(-1,0)和点B(1,0),直线y=2x-1 与y轴交于点C,与抛物线交于点C,D. (1)求抛物线的解析式; (2)求点A到直线CD的距离; (3)平移抛物线,](/uploads/image/z/5332374-54-4.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E5%B9%B3%E9%9D%A2%E7%9B%B4%E8%A7%92%E5%9D%90%E6%A0%87%E7%B3%BB%E4%B8%AD%2C%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%B8%8Ex%E8%BD%B4+%E4%BA%A4%E4%BA%8E%E7%82%B9A%28-1%2C0%29%E5%92%8C%E7%82%B9B%281%2C0%29%2C%E7%9B%B4%E7%BA%BFy%3D2x-1+%E4%B8%8Ey%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9C%2C%E4%B8%8E%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%BA%A4%E4%BA%8E%E7%82%B9C%2CD.%E3%80%80%E3%80%80%EF%BC%881%EF%BC%89%E6%B1%82%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E8%A7%A3%E6%9E%90%E5%BC%8F%EF%BC%9B%E3%80%80%E3%80%80%EF%BC%882%EF%BC%89%E6%B1%82%E7%82%B9A%E5%88%B0%E7%9B%B4%E7%BA%BFCD%E7%9A%84%E8%B7%9D%E7%A6%BB%EF%BC%9B%E3%80%80%E3%80%80%EF%BC%883%EF%BC%89%E5%B9%B3%E7%A7%BB%E6%8A%9B%E7%89%A9%E7%BA%BF%2C)
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