document.write( "Question 734959: I have to find the endpoint and length of a line segment but our teacher didn't teach us endpoint! Could you explain it? \n" ); document.write( "

Algebra.Com's Answer #449238 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
You just need the formula
\n" ); document.write( "If the endpoints are ( x1,y1) and (x2,y2)
\n" ); document.write( "Then the distance between them is:
\n" ); document.write( " $\"+d+=+sqrt%28+%28+x%5B2%5D+-+x%5B1%5D+%29%5E2+%2B+%28+y%5B2%5D+-+y%5B1%5D+%29%5E2+%29+\"$
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\n" ); document.write( "It's important to understand that it doesn't really
\n" ); document.write( "matter which point you call (x1,y1) and (x2,y2)
\n" ); document.write( "( you can switch the 1's and 2's and the formula
\n" ); document.write( "will give you the same answer.
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\n" ); document.write( "If you knew the slope of the line segment and $\"+d+\"$ ,
\n" ); document.write( "and 1 of the endpoints, you could find the other endpoint.
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\n" ); document.write( "If you knew everything but one of the coordinates, like
\n" ); document.write( "x1, or x2, or y1, or y2, then you can find it.
\n" ); document.write( "Hope this helps\r
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