document.write( "Question 894248: Find all points having an x-coordinate of 2 whose distance from the point (-2,-1) is 5 \n" ); document.write( "

Algebra.Com's Answer #541865 by josgarithmetic(39616) $\"\"$ $\"About$

You can put this solution on YOUR website!
You are looking for the variable point, (2,y); and use Distance Formula:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"sqrt%28%282-%28-2%29%29%5E2%2B%28y-%28-1%29%29%5E2%29=5\"$
\n" ); document.write( " $\"sqrt%2816%2B%28y%2B1%29%5E2%29=5\"$
\n" ); document.write( " $\"16%2B%28y%2B1%29%5E2=25\"$
\n" ); document.write( " $\"%28y%2B1%29%5E2=9\"$
\n" ); document.write( " $\"y%2B1=0%2B-+3\"$
\n" ); document.write( " $\"highlight%28y=-1%2B-+3%29\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "y is -4 or +2. \n" ); document.write( "

\n" );