如图,求抛物线经过点A(4,0)B(1,0)C(0,-2)三点(1)求抛物线的解析式(2)P是抛物线上一动点,过P作PM垂直于x轴,垂足为M,是否存在P点,使得以A,P,M为顶点的三角形与三角形OAC相似?(3)在直线A
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![如图,求抛物线经过点A(4,0)B(1,0)C(0,-2)三点(1)求抛物线的解析式(2)P是抛物线上一动点,过P作PM垂直于x轴,垂足为M,是否存在P点,使得以A,P,M为顶点的三角形与三角形OAC相似?(3)在直线A](/uploads/image/z/2828348-44-8.jpg?t=%E5%A6%82%E5%9B%BE%2C%E6%B1%82%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%BB%8F%E8%BF%87%E7%82%B9A%EF%BC%884%2C0%EF%BC%89B%281%2C0%29C%EF%BC%880%2C-2%EF%BC%89%E4%B8%89%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%EF%BC%882%EF%BC%89P%E6%98%AF%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%B8%8A%E4%B8%80%E5%8A%A8%E7%82%B9%2C%E8%BF%87P%E4%BD%9CPM%E5%9E%82%E7%9B%B4%E4%BA%8Ex%E8%BD%B4%2C%E5%9E%82%E8%B6%B3%E4%B8%BAM%2C%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8P%E7%82%B9%2C%E4%BD%BF%E5%BE%97%E4%BB%A5A%2CP%2CM%E4%B8%BA%E9%A1%B6%E7%82%B9%E7%9A%84%E4%B8%89%E8%A7%92%E5%BD%A2%E4%B8%8E%E4%B8%89%E8%A7%92%E5%BD%A2OAC%E7%9B%B8%E4%BC%BC%3F%EF%BC%883%EF%BC%89%E5%9C%A8%E7%9B%B4%E7%BA%BFA)
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