document.write( "Question 474451: Find y if the point (4,y) is equidistant from the points (-1,-1) and (1,3) \n" ); document.write( "
Algebra.Com's Answer #331012 by lwsshak3(11628)\"\" \"About 
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Find y if the point (4,y) is equidistant from the points (-1,-1) and (1,3)
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\n" ); document.write( "Use distance formula to solve:
\n" ); document.write( "d^2=(x1-x2)^2+(y1-y2)^2
\n" ); document.write( "Between (4,y) and (-1,-1):
\n" ); document.write( "=(4-1)^2+(y-3)^2=3^2+y^2-6y+9=y^2-6y+18
\n" ); document.write( "Between (4,y) and (1,3):
\n" ); document.write( "=(4-(-1))^2+(y-(-1))^2=5^2+(y+1)^2=25+y^2+2y+1=y^2+2y+26
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\n" ); document.write( "equate equations:
\n" ); document.write( "y^2-6y+18=y^2+2y+26
\n" ); document.write( "8y=-8
\n" ); document.write( "y=-1
\n" ); document.write( "..
\n" ); document.write( "Ans:
\n" ); document.write( "(4,-1) is equidistant from points (-1,-1) and (1,-3) \n" ); document.write( "
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