初二两道数学题.20分1.在平面直角坐标系xOy中,已知一次函数y=kx+b(k不等于0)的图像经过点P(1,1),与x轴交于点A,与y轴交于点B,且OA/OB=3,那么点A的坐标是().A.(-2,0)或(4,0)B.(-2,0)C.(-4,
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![初二两道数学题.20分1.在平面直角坐标系xOy中,已知一次函数y=kx+b(k不等于0)的图像经过点P(1,1),与x轴交于点A,与y轴交于点B,且OA/OB=3,那么点A的坐标是().A.(-2,0)或(4,0)B.(-2,0)C.(-4,](/uploads/image/z/13908345-33-5.jpg?t=%E5%88%9D%E4%BA%8C%E4%B8%A4%E9%81%93%E6%95%B0%E5%AD%A6%E9%A2%98.20%E5%88%861.%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%B7%B2%E7%9F%A5%E4%B8%80%E6%AC%A1%E5%87%BD%E6%95%B0y%3Dkx%2Bb%EF%BC%88k%E4%B8%8D%E7%AD%89%E4%BA%8E0%EF%BC%89%E7%9A%84%E5%9B%BE%E5%83%8F%E7%BB%8F%E8%BF%87%E7%82%B9P%EF%BC%881%2C1%EF%BC%89%2C%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9A%2C%E4%B8%8Ey%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9B%2C%E4%B8%94OA%2FOB%3D3%2C%E9%82%A3%E4%B9%88%E7%82%B9A%E7%9A%84%E5%9D%90%E6%A0%87%E6%98%AF%EF%BC%88%EF%BC%89.A.%EF%BC%88-2%2C0%EF%BC%89%E6%88%96%EF%BC%884%2C0%EF%BC%89B.%EF%BC%88-2%2C0%EF%BC%89C.%EF%BC%88-4%2C)
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