向量的平移题目2x-y+1=0;按向量a=(1,-1)平移后是 2(x-1)-(y+1)+1=0吗? 怎么不是2(x+1)-(y-1)+1=0?
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![向量的平移题目2x-y+1=0;按向量a=(1,-1)平移后是 2(x-1)-(y+1)+1=0吗? 怎么不是2(x+1)-(y-1)+1=0?](/uploads/image/z/6232669-61-9.jpg?t=%E5%90%91%E9%87%8F%E7%9A%84%E5%B9%B3%E7%A7%BB%E9%A2%98%E7%9B%AE2x-y%2B1%3D0%3B%E6%8C%89%E5%90%91%E9%87%8Fa%3D%281%2C-1%29%E5%B9%B3%E7%A7%BB%E5%90%8E%E6%98%AF+2%28x-1%29-%28y%2B1%29%2B1%3D0%E5%90%97%3F+%E6%80%8E%E4%B9%88%E4%B8%8D%E6%98%AF2%28x%2B1%29-%28y-1%29%2B1%3D0%3F)
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