
Concept explainers
To find: The shortest distance you must travel to reach the river.

Answer to Problem 31E
The shortest distance is 2.21 miles.
Explanation of Solution
Given Information: The diagram which shows the position of river that cuts through the woods. You are currently 2 miles east and 1 mile north of your starting point, the origin.
The shortest path of river will be perpendicular to the river Slope of river
We are at position (2,1)
Equation of line
Now slope the equation
Shortest distance
Thus,The shortest distance is 2.21 miles.
Chapter 1 Solutions
Big Ideas Math A Bridge To Success Algebra 2: Student Edition 2015
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