Reflections Page 2
Reflections
Instructions
1) Change coordinates for A, B, C to A(5,5), B(1,1), C(7,3) so that you have a different triangle.
2) Choose from the drop down boxes and reflect about line.
3) Click on the point, then on the y-axis to choose it as the reflection line.
Question 1
Write the preimage and image points, labeling them correctly.
Question 2
Compare the preimage and image points. What do you notice about both of them?
Question 3
What happened to triangle A'B'C'?
Question 4
Find the algebra rule that will take you from preimage to image (x,y) to (x', y').