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Editor
 Sep 18, 2022
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The length of perpendicular from (a,b) to the line y=mx+c is:
Difficulty: Easy
A: 
$\frac{|am+b+c|}{\sqrt{a^{2}+b^{2}}}$
B: 
$\frac{|ma-b+c|}{\sqrt{m^{2}+1}}$
C: 
$\frac{|am+b+c|}{\sqrt{m^{2}-1}}$
D: 
$\frac{|am-b+c|}{\sqrt{a^{2}+b^{2}}}$
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NETNUST Entry TestMathematicsIntroduction to Analytical Geometry