My Math Forum Scalar projection, distance from point to line

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 January 20th, 2011, 09:15 PM #1 Newbie   Joined: Jan 2011 Posts: 2 Thanks: 0 Scalar projection, distance from point to line Hey there...working out some problems I am having with calc right now, it's been a few years for me. So problem states, use scalar projection to show that the distance from P=(x,y) to line ax + by + c = 0 is: |ax+by+c| / sqrt(a^2 + b^2) Any help?
January 20th, 2011, 10:56 PM   #2
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Re: Scalar projection, distance from point to line

I found the solution, and uploaded the pdf file:

[attachment=0:3kchncpa]pointline.pdf[/attachment:3kchncpa]
Attached Files
 pointline.pdf (37.9 KB, 633 views)

 January 21st, 2011, 04:30 AM #3 Newbie   Joined: Jan 2011 Posts: 2 Thanks: 0 Re: Scalar projection, distance from point to line Managed to get it...if anyone would like the solution posted, feel free to PM me or something and I'll put it up for ya.

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# use a scalar projection to prove the distance from the point to the line

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