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The point (1 ,2) and the line 3x - 4y - 5 = 0  are on the xy-plane.  What is the shortest distance between the line and the point? 

 Jan 5, 2020
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The distance between point and a line:

 

d = |3(1)-4(2)-5| / sqrt(3^2+4^2)   = 10/5 =2

 Jan 5, 2020

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