已知抛物线Y=AX^2+bx+c(a不等于0) 的顶点坐标 为Q(2,-1),且与Y轴交于 点C(已知抛物线Y=AX^2+bx+c(a不等于0) 的顶点坐标 为Q(2,-1),且与Y轴交于 点C(0,3)与X 轴交于A,B两点. 点P是该抛物线上一动
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![已知抛物线Y=AX^2+bx+c(a不等于0) 的顶点坐标 为Q(2,-1),且与Y轴交于 点C(已知抛物线Y=AX^2+bx+c(a不等于0) 的顶点坐标 为Q(2,-1),且与Y轴交于 点C(0,3)与X 轴交于A,B两点. 点P是该抛物线上一动](/uploads/image/z/1660716-36-6.jpg?t=%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFY%3DAX%5E2%2Bbx%2Bc%28a%E4%B8%8D%E7%AD%89%E4%BA%8E0%29+%E7%9A%84%E9%A1%B6%E7%82%B9%E5%9D%90%E6%A0%87+%E4%B8%BAQ%EF%BC%882%2C-1%EF%BC%89%2C%E4%B8%94%E4%B8%8EY%E8%BD%B4%E4%BA%A4%E4%BA%8E+%E7%82%B9C%EF%BC%88%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFY%3DAX%5E2%2Bbx%2Bc%28a%E4%B8%8D%E7%AD%89%E4%BA%8E0%29+%E7%9A%84%E9%A1%B6%E7%82%B9%E5%9D%90%E6%A0%87+%E4%B8%BAQ%EF%BC%882%2C-1%EF%BC%89%2C%E4%B8%94%E4%B8%8EY%E8%BD%B4%E4%BA%A4%E4%BA%8E+%E7%82%B9C%EF%BC%880%2C3%EF%BC%89%E4%B8%8EX+%E8%BD%B4%E4%BA%A4%E4%BA%8EA%2CB%E4%B8%A4%E7%82%B9.+%E7%82%B9P%E6%98%AF%E8%AF%A5%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%B8%8A%E4%B8%80%E5%8A%A8)
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