在平面直角坐标系中以任意两点P(x1,y1)、Q(x2,y2)为端点的中点坐标为(x1+x2/2,y2+y2/2).如图,在平面直角坐标系xoy中,双曲线y=-3/x(x<0)和y=k/x(x>0)的图像关于y轴对称直线y=1/2x
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![在平面直角坐标系中以任意两点P(x1,y1)、Q(x2,y2)为端点的中点坐标为(x1+x2/2,y2+y2/2).如图,在平面直角坐标系xoy中,双曲线y=-3/x(x<0)和y=k/x(x>0)的图像关于y轴对称直线y=1/2x](/uploads/image/z/13559571-27-1.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%BB%E4%B8%AD%E4%BB%A5%E4%BB%BB%E6%84%8F%E4%B8%A4%E7%82%B9P%EF%BC%88x1%2Cy1%EF%BC%89%E3%80%81Q%EF%BC%88x2%2Cy2%EF%BC%89%E4%B8%BA%E7%AB%AF%E7%82%B9%E7%9A%84%E4%B8%AD%E7%82%B9%E5%9D%90%E6%A0%87%E4%B8%BA%EF%BC%88x1%EF%BC%8Bx2%2F2%2Cy2%EF%BC%8By2%2F2%EF%BC%89.%E5%A6%82%E5%9B%BE%2C%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%2C%E5%8F%8C%E6%9B%B2%E7%BA%BFy%EF%BC%9D%EF%BC%8D3%2Fx%EF%BC%88x%EF%BC%9C0%EF%BC%89%E5%92%8Cy%EF%BC%9Dk%2Fx%EF%BC%88x%EF%BC%9E0%EF%BC%89%E7%9A%84%E5%9B%BE%E5%83%8F%E5%85%B3%E4%BA%8Ey%E8%BD%B4%E5%AF%B9%E7%A7%B0%E7%9B%B4%E7%BA%BFy%EF%BC%9D1%2F2x)
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