Taxi Cab Geometry | IOQM 2021 Problem 27 | Math Olympiad

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IOQM 2021 Problem 27 discussion and solution

A bug travels in the coordinate plane moving only along the lines that are parallel to the 𝑥 axis or 𝑦 axis. Let 𝐴=(−3,2) and 𝐵= (3,−2). Consider all possible paths of the bug from 𝐴 to 𝐵 of length at most 14 . How many points with integer coordinates lie on at least one of these paths?

Problem useful for I.S.I B.Stat B.Math Entrance, CMI Entrance and Math Olympiad
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sir can you please suggest me a book for solving quality problems from co ordinate geometry...by the way thanks for these sessions for ioqm..

srinjoysom
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answer to the question:
we cannot reach the crossed dots because to reach their we have to do more than 2 negative displacement which will make the distance travelled greater than 14...

sarvesh_soni