Triangle abc is translated onto its image, triangle a'b'c'. use the given vertices of the triangles to answer parts a and b. a(-6, 0) b(-1, 0) c(-5, 3) a'(-2, 4) b'(3, 4) c'(-1, 7) part a: use the distance formula to prove that the translation was an isometric transformation. include all of your work in your final answer. part b: use complete sentences to describe the translation that maps triangle abc onto its image.