[b]Instructions[/b][br][br]1) Change coordinates for A, B, C to A(5,5), B(1,1), C(7,3) so that you have a different triangle.[br][br]2) Choose from the drop down boxes and reflect about line.[br][br]3) Plot two points, D(0,0) and E(4,4).[br][br]4) Draw a line through these two points. [br][br]5) Click on the point, then on the line you just draw to choose it as the reflection line. This line would be y=x.
Write the preimage and image points, labeling them correctly.
Compare the preimage and image points. What do you notice about both of them?
What happened to triangle A'B'C'?
Find the algebra rule that will take you from preimage to image (x,y) to (x', y').