The function .
The functions and are lie in the graph.
The graph of is a vertical shift of one unit to the up of the graph of .
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are lie in the graph.![\"graph](\"/userfiles/image/Library/Trigonometry/graph_the_function_f(x)=x%5E2+1)y=x%5E2.gif\")
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is a vertical shift of one unit to the up of the graph of .