Gordon and tess are trying to determine whether triangle abc and triangle fge can be proven congruent through rigid motions.

gordon says that triangle abc ~= triangle fge because triangle abc can be reflected over the line x = 1 to create triangle fge.

tess says that triangle abc ~= triangle fge because triangle abc can be translated by the rule (x + 5, y - 7) to create triangle fge.

who is correct?