A red ball is placed at point A in the figure. (Intro 1 figure) : figure attached
How many images are seen by an observer at point O?
Where is each image seen by an observer located?
Enter your answers as an ordered pairs (x, y) separated with comma(s), where x and y are in meters. Assume the origin is at the corner of the mirror, +x axis is directed to the right, and +y axis is directed upward.
The Attempt at a Solution
i guess the answer of first question is 3
but i donno how to do 2nd part