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Foot of the perpendicular from a point (...

Foot of the perpendicular from a point `(x_(1),y_(1))` on the line ax + by + c= 0` is given by

A

`(x-x_(1))/(a)=(y-y_(1))/(b)=((ax_(1)+by_(1)+c)/(a^(2)+b^(2)))`

B

`(x-x_(1))/(a)=(y-y_(1))/(b)=((ax_(1)+by_(1)+c)/(sqrt(a^(2)+b^(2))))`

C

`(x-x_(1))/(a)=(y-y_(1))/(b)=-((ax_(1)+by_(1)+c)/(a^(2)+b^(2)))`

D

`(x-x_(1))/(a)=(y-y_(1))/(b)=((ax_(1)+by_(1)+c)/(sqrt(a^(2)+b^(2))))`

Text Solution

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The correct Answer is:
A
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