如图已知抛物线y=x平方+4x+3交x轴于AB两点,交y轴于点C,抛物线的对称轴交x轴于点E,点B的坐标为(-1,0)(1)求抛物线的对称轴及点A的坐标(2)在平面直角坐标系中XOY中是否存在点P,与ABC三点构
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![如图已知抛物线y=x平方+4x+3交x轴于AB两点,交y轴于点C,抛物线的对称轴交x轴于点E,点B的坐标为(-1,0)(1)求抛物线的对称轴及点A的坐标(2)在平面直角坐标系中XOY中是否存在点P,与ABC三点构](/uploads/image/z/1671788-20-8.jpg?t=%E5%A6%82%E5%9B%BE%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Dx%E5%B9%B3%E6%96%B9%2B4x%2B3%E4%BA%A4x%E8%BD%B4%E4%BA%8EAB%E4%B8%A4%E7%82%B9%2C%E4%BA%A4y%E8%BD%B4%E4%BA%8E%E7%82%B9C%2C%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E5%AF%B9%E7%A7%B0%E8%BD%B4%E4%BA%A4x%E8%BD%B4%E4%BA%8E%E7%82%B9E%2C%E7%82%B9B%E7%9A%84%E5%9D%90%E6%A0%87%E4%B8%BA%EF%BC%88-1%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%E5%AF%B9%E7%A7%B0%E8%BD%B4%E5%8F%8A%E7%82%B9A%E7%9A%84%E5%9D%90%E6%A0%87%EF%BC%882%EF%BC%89%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%ADXOY%E4%B8%AD%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%E7%82%B9P%2C%E4%B8%8EABC%E4%B8%89%E7%82%B9%E6%9E%84)
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