How to plot the graph of the function y = f (x) + m, if the graph of the function y = f (x) is known?

The ordinate of each point of the required graph will differ from the ordinate of the original by m. Therefore, if m> 0, then it is enough to shift the graph of the function y = f (x) upward, and if m <0 downward by a distance m. If m = 0, the graphs of the given and obtained functions coincide.

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