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Rotations Page 2

Reflections

Instructions 1) Change coordinates for A, B, C to A(3,2), B(6,5), C(1,8) so that you have a different triangle. 2) Choose from the drop down boxes and rotate around point. 3) Select point, then select the origin. 4) Type 180°, and press OK.

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').