关于抛物线已知:抛物线y=kx*x+2√3(2+k)x+k*k+k经过坐标原点(1)求抛物线的解析式和顶点B的坐标(2)设点A是抛物线与x轴的另一个交点,试在y轴上确定一点P,使PA+PB最短,并求出点P的坐标(3)
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![关于抛物线已知:抛物线y=kx*x+2√3(2+k)x+k*k+k经过坐标原点(1)求抛物线的解析式和顶点B的坐标(2)设点A是抛物线与x轴的另一个交点,试在y轴上确定一点P,使PA+PB最短,并求出点P的坐标(3)](/uploads/image/z/8325860-68-0.jpg?t=%E5%85%B3%E4%BA%8E%E6%8A%9B%E7%89%A9%E7%BA%BF%E5%B7%B2%E7%9F%A5%EF%BC%9A%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Dkx%2Ax%2B2%E2%88%9A3%EF%BC%882%2Bk%29x%2Bk%2Ak%2Bk%E7%BB%8F%E8%BF%87%E5%9D%90%E6%A0%87%E5%8E%9F%E7%82%B9%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%E5%92%8C%E9%A1%B6%E7%82%B9B%E7%9A%84%E5%9D%90%E6%A0%87%EF%BC%882%EF%BC%89%E8%AE%BE%E7%82%B9A%E6%98%AF%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%B8%8Ex%E8%BD%B4%E7%9A%84%E5%8F%A6%E4%B8%80%E4%B8%AA%E4%BA%A4%E7%82%B9%2C%E8%AF%95%E5%9C%A8y%E8%BD%B4%E4%B8%8A%E7%A1%AE%E5%AE%9A%E4%B8%80%E7%82%B9P%2C%E4%BD%BFPA%2BPB%E6%9C%80%E7%9F%AD%2C%E5%B9%B6%E6%B1%82%E5%87%BA%E7%82%B9P%E7%9A%84%E5%9D%90%E6%A0%87%EF%BC%883%EF%BC%89)
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