A glide reflection is a transformation that is made up of a translation and a reflection across a line the is parallel to the direction of the translation.
A. Graph triangle DEF with vertices D(1,-1) E(7,-3) F(2,-7)
B. Graph triangle DEF under a glide reflection where the translation is (x,y) —> (x, y+8). Give the coordinates of the vertices of the image.
C. Are the two figures congruent?