Posted by Katia on Monday, December 31, 2012 at 3:13pm.
Triangle ABC has coordinates A(1, 4); B(3, –2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over the xaxis

Algebra  Steve, Tuesday, January 1, 2013 at 12:06am
just change the sign of all the ycoordinates, since the reflection takes (x,y) to (x,y)