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Mathematics 13 Online
OpenStudy (anonymous):

One train route follows the curve y = 2x2 − 4x + 6, and the other follows y = x2. Assume that distance along both axes is measured in miles. The railroad wants to construct a north-south maintenance road PQ between the two routes. Where should the road be located so that it is as short as possible?

OpenStudy (mertsj):

At x = 1/2

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