Find K given 3x+4y=10 and 5x+12y+k=0 are equidistant from O(0,0)
*Please show all working out*
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The distance from the point $\displaystyle (p,q)$ to the line $\displaystyle Ax+By+C=0$ is
$\displaystyle \displaystyle \frac{|Ap+Bq+C|}{\sqrt{A^2+B^2}}$
Now post some of your own work on this problem.