Hexagon DEFGHI is translated on the coordinate plane below to create hexagon D'E'F'G'H'I'.
Each point is moved 7 units down and 7 units right. Therefore it is translation.
Since a hexagon is translated 7 units right, x-coordinates of its points are increased by 7.
Since a hexagon is translated 7 units down, y-coordinates of its points are decreased by 7.
\((x,y) \rightarrow (x+7,y-7)\)