1.If youreflectan imageoverthe -axis,thenew -coordinateswill be the oppositeof the old
-coordinates.The -coordinatesremainthe same.- If youreflectan imageoverthe
-axis, take theoppositeof the-coordinates.The -coordinatesremainthe same.Example 3
Triangle is shownon the coordinategrid below. Whatwouldbe the coordinatesof if it
has beenreflectedover the -axis?
Sinceyou are findingthe reflectionof the imageover the -axis,you will find the oppositeof the -coor-
dinates.The -coordinateswill remainthe same.So, the coordinatechangecan be expressedas follows.
Carefullyadjusteachcoordinateusingthe formulaabove.This givesnew coordinates , and.Drawthe translatedtriangleto verifythat your answeris correct.