在平面直角坐标系xOy中,抛物线y= -1/6x2+bx+c过点A(0,4)和C(8,0),P(t,0)是x轴正半轴上一动点,M是线段AP中点,将线段MP绕点P顺时针旋转90度得线段PB。过点B作x轴的垂线,两直线相交
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![在平面直角坐标系xOy中,抛物线y= -1/6x2+bx+c过点A(0,4)和C(8,0),P(t,0)是x轴正半轴上一动点,M是线段AP中点,将线段MP绕点P顺时针旋转90度得线段PB。过点B作x轴的垂线,两直线相交](/uploads/image/z/7307666-26-6.jpg?t=%E5%9C%A8%E5%B9%B3%E9%9D%A2%E7%9B%B4%E8%A7%92%E5%9D%90%E6%A0%87%E7%B3%BBxOy%E4%B8%AD%EF%BC%8C%E6%8A%9B%E7%89%A9%E7%BA%BFy%3D+-1%2F6x2%2Bbx%2Bc%E8%BF%87%E7%82%B9A%EF%BC%880%EF%BC%8C4%EF%BC%89%E5%92%8CC%EF%BC%888%EF%BC%8C0%EF%BC%89%EF%BC%8CP%EF%BC%88t%EF%BC%8C0%EF%BC%89%E6%98%AFx%E8%BD%B4%E6%AD%A3%E5%8D%8A%E8%BD%B4%E4%B8%8A%E4%B8%80%E5%8A%A8%E7%82%B9%EF%BC%8CM%E6%98%AF%E7%BA%BF%E6%AE%B5AP%E4%B8%AD%E7%82%B9%EF%BC%8C%E5%B0%86%E7%BA%BF%E6%AE%B5MP%E7%BB%95%E7%82%B9P%E9%A1%BA%E6%97%B6%E9%92%88%E6%97%8B%E8%BD%AC90%E5%BA%A6%E5%BE%97%E7%BA%BF%E6%AE%B5PB%E3%80%82%E8%BF%87%E7%82%B9B%E4%BD%9Cx%E8%BD%B4%E7%9A%84%E5%9E%82%E7%BA%BF%EF%BC%8C%E4%B8%A4%E7%9B%B4%E7%BA%BF%E7%9B%B8%E4%BA%A4)
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