Talk:2024 AIME I Problems/Problem 12

Revision as of 21:23, 2 February 2024 by Ryanjwang (talk | contribs)

This problem's answer is wrong. When I completed this test, I did this problem wrong, too, because I missed this crucial (and weird) thing as mentioned below.

It is a very bad problem because there is actually another intersection if you look closely in Geogebra or other drawing tools. It is nearly impossible for humans to find.

Near the point (1, 1), not only is there an intersection at point (1, 1), but also another intersection at around (0.99, 0.99).

Here is the graph for proof:

GraphOfWhyP12IsWrong.png

RE: Bad graph

Note that although solution 1 is the first solution, it is not necessarily the intended one (which it probably isn't). I also acknowledged this in the note section, and should be hard to notice, as a hump and a non-zero sloped line that passes through its peak must also pass through another point of the hump.

Hump-Line intersection.png

Also this doesn't immediately mean that this is a bad problem.