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November 28, 2014

November 28, 2014

Posted by **Alton** on Sunday, September 7, 2008 at 11:18pm.

D = (Ax + By + C) / sqrt(A^2 + B^2)

So, would you start out by multiplying sqrt (A^2 + B^2) to both sides and then it would become:

sqrt (A^2 + B^2)D = Ax + By + C

Then square both sides,

D^2(A^2 + B^2) = (Ax + By + C)^2

Then I got lost, could someone direct me through this problem? Did I start out the right way? Thanks!

- Trig/Pre-Cal -
**Brooke**, Monday, September 22, 2008 at 11:41am1

- - x > 0

x

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