The columns of transformation matrix T are controlled by points A and B. Point A controls the first column. Point B controls the second column.[br][br][color=#c51414]Drag points A and B to and observe what happens.[/color] [br][br][color=#b20ea8]Drag points A and B to illustrate the following transformations:[br][list][br][*]A reflection in the x-axis.[br][*]A reflection in the y-axis.[br][*]A reflection in the line y=x.[br][*]A reflection in the line y=-x.[br][*]A counter-clockwise quarter-turn around the origin.[br][*]A clockwise quarter-turn around the origin.[br][*]A half-turn around the origin.[br][/list][/color]