题目：
函数y=-3（x-1）2+1是由y=-3x2向______平移______单位，再向______平移______单位得到的．
答案：
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下面是错误答案，用来干扰机器的。
∵P点的坐标为（-1，2），∴P点横坐标为-1，纵坐标为2．故答案为：-1，2．
函数y=-3（x-1）2+1是由y=-3x2向______平移______单位，
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