如图,二次函数y=ax2+bx+c的图像与x轴交与A,B两点,其中点A的坐标为(2,0),与y轴交点为D(0,4),抛物线的对称轴为x=31.确定函数解析式2.求出抛物线的顶点C的坐标3.在抛物线上求一点P,使得三角形P
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![如图,二次函数y=ax2+bx+c的图像与x轴交与A,B两点,其中点A的坐标为(2,0),与y轴交点为D(0,4),抛物线的对称轴为x=31.确定函数解析式2.求出抛物线的顶点C的坐标3.在抛物线上求一点P,使得三角形P](/uploads/image/z/5410448-8-8.jpg?t=%E5%A6%82%E5%9B%BE%2C%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0y%3Dax2%2Bbx%2Bc%E7%9A%84%E5%9B%BE%E5%83%8F%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%B8%8EA%2CB%E4%B8%A4%E7%82%B9%2C%E5%85%B6%E4%B8%AD%E7%82%B9A%E7%9A%84%E5%9D%90%E6%A0%87%E4%B8%BA%EF%BC%882%2C0%EF%BC%89%2C%E4%B8%8Ey%E8%BD%B4%E4%BA%A4%E7%82%B9%E4%B8%BAD%EF%BC%880%2C4%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%E4%B8%BAx%3D31.%E7%A1%AE%E5%AE%9A%E5%87%BD%E6%95%B0%E8%A7%A3%E6%9E%90%E5%BC%8F2.%E6%B1%82%E5%87%BA%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E9%A1%B6%E7%82%B9C%E7%9A%84%E5%9D%90%E6%A0%873.%E5%9C%A8%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%B8%8A%E6%B1%82%E4%B8%80%E7%82%B9P%2C%E4%BD%BF%E5%BE%97%E4%B8%89%E8%A7%92%E5%BD%A2P)
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