sam davis hostage
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- Sep 12, 2023
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- 2024
I've been looking at some solutions for this question, but they seem all incorrect. Videos include:
In the description of the video by Mind Your Decisions, there is a link to a tiktok by a James Ruse student who also provides a solution. I have a picture of their work attached below.
At some point, they all write something along the lines of
where
. However, from this, they incorrectly conclude that
, which comes from subbing in
. This is incorrect, because
. The correct conclusion should be that
, and the final region should have a solid line diagonal line below the origin. For example, if
, then
will still be true, as
. If you go to the desmos and add "/yf1efslc4b" after "calculator" in the url, you can see that the region should include y=x by dragging the z slider around.
I can't tell if this is a misunderstanding on my end or a collective error that everyone made. Any ideas?

At some point, they all write something along the lines of
I can't tell if this is a misunderstanding on my end or a collective error that everyone made. Any ideas?
