document.write( "Question 900532: one endpoint of a segment lies on the origin. if the second endpoints is known to lie on the line x=4, and the segment is a units long, explain how you could find the coordinates of the other endpoint
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Algebra.Com's Answer #546013 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
a is also a variable, but you would assume it has or could have a known value. a is a constant.\r
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\n" ); document.write( "\n" ); document.write( "The distance from (0,0) to (4,y) must be a units.\r
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\n" ); document.write( "\n" ); document.write( "Distance Formula for this, filled-in:
\n" ); document.write( "\"sqrt%28%284-0%29%5E2%2B%28y-0%29%5E2%29=a\"
\n" ); document.write( "\"sqrt%2816%2By%5E2%29=a\"
\n" ); document.write( "\"y%5E2%2B16=a%5E2\"
\n" ); document.write( "\"y%5E2=a%5E2-16\"
\n" ); document.write( "\"highlight%28y=-sqrt%28a%5E2-16%29%29\" or \"highlight%28y=sqrt%28a%5E2-16%29%29\"
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