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diagramThe city planning commission has set aside funds to build a bridge going north and south across the Newton River. To save money, they have agreed to build the shortest bridge possible. A map for the -mile wide city is shown at right. The equations below represent the riverbanks where x is the number of miles east of City Hall and y is the number of miles north of City Hall. Determine the location for the shortest bridge that will span the Newton River.

North Bank: South Bank: Homework Help ✎

At any give value of , the distance between the North and South Banks is:

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