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The graph of y=f(x)+k (where k is a real number) is the same as the graph of y=f(x) only it's shifted up (when k＞0) or down (when k＜0). Similarly, the graph of y=f(x-h) (where h is a real number) is the same as the graph of y=f(x) only it's shifted to the right (when h＞0) or to the left (when h＜0)
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