On the same grid (east as positive $x$, north as positive $y$), a hospital is $3$ units west and $4$ units…
On the same grid (east as positive $x$, north as positive $y$), a hospital is $3$ units west and $4$ units south of the origin. Its coordinates are:
- $(3,-4)$
- $(-3,4)$
- $(-3,-4)$
- $(4,-3)$
Solution
West $\Rightarrow x=-3$, south $\Rightarrow y=-4$. So the hospital is at $(-3,-4)$.
Asked in: IMO
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