已知:抛物线的对称轴X=-1,A(-3,0)C(0.-2),(1)求函数解析式.(2)在对称轴上有一点P,使得三角形PBC的周长最小,求P坐标.(3)若点D是线段OC上的一个动点,(不和点O点C重合,)过点D作DE平行PC交X
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![已知:抛物线的对称轴X=-1,A(-3,0)C(0.-2),(1)求函数解析式.(2)在对称轴上有一点P,使得三角形PBC的周长最小,求P坐标.(3)若点D是线段OC上的一个动点,(不和点O点C重合,)过点D作DE平行PC交X](/uploads/image/z/8972434-10-4.jpg?t=%E5%B7%B2%E7%9F%A5%EF%BC%9A%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E5%AF%B9%E7%A7%B0%E8%BD%B4X%3D-1%2CA%28-3%2C0%29C%280.-2%29%2C%EF%BC%881%EF%BC%89%E6%B1%82%E5%87%BD%E6%95%B0%E8%A7%A3%E6%9E%90%E5%BC%8F.%EF%BC%882%EF%BC%89%E5%9C%A8%E5%AF%B9%E7%A7%B0%E8%BD%B4%E4%B8%8A%E6%9C%89%E4%B8%80%E7%82%B9P%2C%E4%BD%BF%E5%BE%97%E4%B8%89%E8%A7%92%E5%BD%A2PBC%E7%9A%84%E5%91%A8%E9%95%BF%E6%9C%80%E5%B0%8F%2C%E6%B1%82P%E5%9D%90%E6%A0%87.%EF%BC%883%EF%BC%89%E8%8B%A5%E7%82%B9D%E6%98%AF%E7%BA%BF%E6%AE%B5OC%E4%B8%8A%E7%9A%84%E4%B8%80%E4%B8%AA%E5%8A%A8%E7%82%B9%2C%EF%BC%88%E4%B8%8D%E5%92%8C%E7%82%B9O%E7%82%B9C%E9%87%8D%E5%90%88%2C%EF%BC%89%E8%BF%87%E7%82%B9D%E4%BD%9CDE%E5%B9%B3%E8%A1%8CPC%E4%BA%A4X)
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