document.write( "Question 310878: If the endpoints of line segment AB are a(-4,5) and B(2,-5) what is the length of line segment AB? \n" ); document.write( "

Algebra.Com's Answer #222350 by Earlsdon(6294) $\"\"$ $\"About$

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Use the distance formula:
\n" ); document.write( " $\"d+=+sqrt%28%28x%5B2%5D-x%5B1%5D%29%5E2%2B%28y%5B2%5D-y%5B1%5D%29%5E2%29\"$ where the x- and y-coordinates of the two given points (-4,5) and (2,-5) provide the $\"x%5B1%5D\"$ , $\"y%5B1%5D\"$ , $\"x%5B2%5D\"$ ,and $\"y%5B2%5D\"$ respectively.
\n" ); document.write( " $\"d+=+sqrt%28%282-%28-4%29%29%5E2%2B%28-5-5%29%5E2%29\"$
\n" ); document.write( " $\"d+=+sqrt%28%286%29%5E2%2B%28-10%29%5E2%29\"$
\n" ); document.write( " $\"d+=+sqrt%2836%2B100%29\"$
\n" ); document.write( " $\"d+=+11.66\"$
\n" ); document.write( "Line segment AB is 11.66 units long. \n" ); document.write( "

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