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1. The problem statement, all variables and given/known data

In the figure are two perpendicular mirrors. The origin is shown by the axes. I am asked to find the positions of each of the images that the observer at point O sees.

The coordinates that I found were (-1,2) , (1,-2) , and (1,2),

however, my book insists that the answers are (-1,1), (1,-2), and (1,2)

What am I doing wrong? I am a little bit unsure as far as drawing my rays for the image formed when light reflects off both mirrors. Do the lines extended behind the mirror surface have to meet?

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Perpendicular Mirrors Question

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