Rectangle EFGH is shown below with line IJ passing through the center:
Rectangle EFGH is shown with a line IJ passing vertically through the center of the rectangle.
If rectangle EFGH is dilated by a scale factor of six about the center of the rectangle to create rectangle E'F'G'H', dilated line I'J' will
 remain unchanged
 be parallel to line IJ
 shift six units up
 be perpendicular to line IJ