初三 数学 二次函数复习(急!) 请详细解答,谢谢! (22 9:4:0)抛物线y=ax^(a乘x的平方)+bx+c(c不等于0)与y轴交于点C(0,3),与x轴正半轴交于A,B两点(点B在点A的右侧),抛物线的对称轴是直
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![初三 数学 二次函数复习(急!) 请详细解答,谢谢! (22 9:4:0)抛物线y=ax^(a乘x的平方)+bx+c(c不等于0)与y轴交于点C(0,3),与x轴正半轴交于A,B两点(点B在点A的右侧),抛物线的对称轴是直](/uploads/image/z/405442-10-2.jpg?t=%E5%88%9D%E4%B8%89+%E6%95%B0%E5%AD%A6+%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0%E5%A4%8D%E4%B9%A0%EF%BC%88%E6%80%A5%21%EF%BC%89+%E8%AF%B7%E8%AF%A6%E7%BB%86%E8%A7%A3%E7%AD%94%2C%E8%B0%A2%E8%B0%A2%21++++%2822+9%3A4%3A0%29%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Dax%5E%EF%BC%88a%E4%B9%98x%E7%9A%84%E5%B9%B3%E6%96%B9%EF%BC%89%2Bbx%2Bc%EF%BC%88c%E4%B8%8D%E7%AD%89%E4%BA%8E0%EF%BC%89%E4%B8%8Ey%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9C%EF%BC%880%2C3%EF%BC%89%2C%E4%B8%8Ex%E8%BD%B4%E6%AD%A3%E5%8D%8A%E8%BD%B4%E4%BA%A4%E4%BA%8EA%2CB%E4%B8%A4%E7%82%B9%EF%BC%88%E7%82%B9B%E5%9C%A8%E7%82%B9A%E7%9A%84%E5%8F%B3%E4%BE%A7%EF%BC%89%2C%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E5%AF%B9%E7%A7%B0%E8%BD%B4%E6%98%AF%E7%9B%B4)
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