2007 Cyprus MO/Lyceum/Problem 27
Problem
In the diagram, the light beam is reflected on the -axis and the beam , being reflected on a mirror parallel to the -axis at distance 6, intersects the -axis at point .
The equation of line is given by
Solution
The slope of is and the distance is , so the equation is , or .
See also
2007 Cyprus MO, Lyceum (Problems) | ||
Preceded by Problem 26 |
Followed by Problem 28 | |
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