抛物线y=ax2+bx+c的顶点A在x轴上,经过点A的直线y=kx+m交抛物线于另一点B,经过点B做x轴垂线,M为垂足,AM=2,探索b,m之间的数量关系.
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![抛物线y=ax2+bx+c的顶点A在x轴上,经过点A的直线y=kx+m交抛物线于另一点B,经过点B做x轴垂线,M为垂足,AM=2,探索b,m之间的数量关系.](/uploads/image/z/3802731-51-1.jpg?t=%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Dax2%2Bbx%2Bc%E7%9A%84%E9%A1%B6%E7%82%B9A%E5%9C%A8x%E8%BD%B4%E4%B8%8A%2C%E7%BB%8F%E8%BF%87%E7%82%B9A%E7%9A%84%E7%9B%B4%E7%BA%BFy%3Dkx%2Bm%E4%BA%A4%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%BA%8E%E5%8F%A6%E4%B8%80%E7%82%B9B%2C%E7%BB%8F%E8%BF%87%E7%82%B9B%E5%81%9Ax%E8%BD%B4%E5%9E%82%E7%BA%BF%2CM%E4%B8%BA%E5%9E%82%E8%B6%B3%2CAM%3D2%2C%E6%8E%A2%E7%B4%A2b%2Cm%E4%B9%8B%E9%97%B4%E7%9A%84%E6%95%B0%E9%87%8F%E5%85%B3%E7%B3%BB.)
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