# Coordinate geometry- point to line distance

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• February 25th 2011, 02:30 PM
Tessarina
Coordinate geometry- point to line distance
Find K given 3x+4y=10 and 5x+12y+k=0 are equidistant from O(0,0)

*Please show all working out*
• February 25th 2011, 03:04 PM
Plato
Quote:

Originally Posted by Tessarina
Find K given 3x+4y=10 and 5x+12y+k=0 are equidistant from O(0,0)
*Please show all working out*

You should understand by now that this is not a homework service nor is it a tutorial service.
The distance from the point $(p,q)$ to the line $Ax+By+C=0$ is
$\displaystyle \frac{|Ap+Bq+C|}{\sqrt{A^2+B^2}}$

Now post some of your own work on this problem.