What is the result of reflecting a point across the line x=cx = cx=c?
(2c−x,y)(2c - x, y)(2c−x,y)
(c−x,y)(c - x, y)(c−x,y)
(c+x,y)(c + x, y)(c+x,y)
(2c+x,y)(2c + x, y)(2c+x,y)