document.write( "Question 1053816: find all points having an x coordinate of 4 whose distance from the point (-2, -1) is 10 \n" ); document.write( "
Algebra.Com's Answer #669011 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
-removed-
\n" ); document.write( "-maybe more later-\r
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\n" ); document.write( "\n" ); document.write( "The same as saying, the distance from (4,y) to (-2,-1) is 10.
\n" ); document.write( "Use the distance formula.\r
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\n" ); document.write( "\n" ); document.write( "\"sqrt%28%284-%28-2%29%29%5E2%2B%28y-%28-1%29%29%5E2%29=10\"
\n" ); document.write( "\"%284%2B2%29%5E2%2B%28y%2B1%29%5E2=100\"
\n" ); document.write( "\"36%2By%5E2%2B2y%2B1=100\"
\n" ); document.write( "\"y%5E2%2B2y=100-37\"
\n" ); document.write( "\"y%5E2%2B2y-63=0\"
\n" ); document.write( "-
\n" ); document.write( "\"y=%28-2%2B-+sqrt%28256%29%29%2F2\"\r
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\n" ); document.write( "\n" ); document.write( "\"y=%28-2%2B-+16%29%2F2\"\r
\n" ); document.write( "\n" ); document.write( "y=7 or y=9\r
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\n" ); document.write( "\n" ); document.write( "The points will be (4,7) and (4,9).
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