SOLUTION: Find the shortest distance from the given point (5,0) to the given line y=0.5x+5

Question 1137655: Find the shortest distance from the given point (5,0) to the given line y=0.5x+5
Answer by ikleyn(52855) (Show Source): You can put this solution on YOUR website!
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You want to find the distance from the point (5,0) to the given straight line  0.5x - y + 5 = 0.


There is a remarkable formula which ideally suits for this need.


    Let the straight line in a coordinate plane is defined in terms of its linear equation 

         a*x + b*y + c = 0,

    where "a", "b" and "c" are real numbers, and let P = (,) be the point in the coordinate plane. 

    Then the distance from the point P to the straight line is equal to

        d = .


Regarding this formula, see the lesson
    The distance from a point to a straight line in a coordinate plane
in this site.


Substitute the given data  a= 0.5, b= -1, c= 5,   = 5,  = 0  into the formula to get the distance under the question


     =  = 6.708.


Answer.  The distance under the question is 6.708 units.

Solved.

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