如图1,抛物线y=ax^2+bc+c(a≠0)的顶点为c(1,4),交x轴于A、B两点,交y轴于D,其中B的坐标为(3,0)(1)求抛物线的解析式;(2)如图2,过点A的直线与抛物线交于点 E,交y轴于点F,其中点E的横坐标为2,若
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![如图1,抛物线y=ax^2+bc+c(a≠0)的顶点为c(1,4),交x轴于A、B两点,交y轴于D,其中B的坐标为(3,0)(1)求抛物线的解析式;(2)如图2,过点A的直线与抛物线交于点 E,交y轴于点F,其中点E的横坐标为2,若](/uploads/image/z/3802757-5-7.jpg?t=%E5%A6%82%E5%9B%BE1%2C%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Dax%5E2%2Bbc%2Bc%28a%E2%89%A00%29%E7%9A%84%E9%A1%B6%E7%82%B9%E4%B8%BAc%281%2C4%29%2C%E4%BA%A4x%E8%BD%B4%E4%BA%8EA%E3%80%81B%E4%B8%A4%E7%82%B9%2C%E4%BA%A4y%E8%BD%B4%E4%BA%8ED%2C%E5%85%B6%E4%B8%ADB%E7%9A%84%E5%9D%90%E6%A0%87%E4%B8%BA%EF%BC%883%2C0%EF%BC%89%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%EF%BC%882%EF%BC%89%E5%A6%82%E5%9B%BE2%2C%E8%BF%87%E7%82%B9A%E7%9A%84%E7%9B%B4%E7%BA%BF%E4%B8%8E%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%BA%A4%E4%BA%8E%E7%82%B9+E%2C%E4%BA%A4y%E8%BD%B4%E4%BA%8E%E7%82%B9F%2C%E5%85%B6%E4%B8%AD%E7%82%B9E%E7%9A%84%E6%A8%AA%E5%9D%90%E6%A0%87%E4%B8%BA2%2C%E8%8B%A5)
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