1) Position Wily Coyote (using points [i][b][color=#cc0000]A[/color][/b][/i] and [i][b][color=#1e84cc]B[/color][/b][/i]) anywhere you'd like within the coordinate plane.[br]2) Select the REFLECT ABOUT LINE [icon]/images/ggb/toolbar/mode_mirroratline.png[/icon] tool. [br] Then drag a rectangle around points [i][b][color=#cc0000]A[/color][/b][/i], [i][b][color=#1e84cc]B[/color][/b][/i], and Wily's picture. [br] This should cause these 3 items to become highlighted. [br] Select the dashed line. [br][br]3) The images of these items should now appear. [br][br]Please answer the questions that appear below the applet.
If point A is (1,-2) and point B is (4,-1), what would point A' and point B' be if you reflect across the line y=x.
A' = (-2,1)[br]B' = (-1,4)
What changed with point A and point B when you reflected over the line y=x to get point A' and point B'?
The x coordinate and the y coordinate flipped/switched.[br]i.e: point A and point B are (x,y) and point A' and point B' are (y,x).