Remember that a a translation is a type of transformation in which you shift the graph of a function horizontally or vertically. Adding to the output of a function moves the graph up; whereas, subtracting from it moves the graph down. Since you are subtracting 2 to the output of the graph
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, you are moving the graph of
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tow units up.
Therefore, the correct answer is:
4.Translate down 2 units.