1 point Relative to the graph of the graphs of the following equations have been changed in what way 1 y x 18 2 y x 18 3 y 18x 4 y x 18 A shifted 18 units down B shifted 18 units up C shifted 18 units left D shifted 18 units right E compressed horizontally by the factor 18 F stretched horizontally by the factor 18 G compressed vertically by the factor 18 H stretched vertically by the factor 18 y x