document.write( "Question 213319: Find All values of (y) such that the distance between (4,y) and (-3,9) is 21.
\n" ); document.write( "y=____
\n" ); document.write( "

Algebra.Com's Answer #161148 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Find All values of (y) such that the distance between (4,y) and (-3,9) is 21.
\n" ); document.write( "---
\n" ); document.write( "21^2 = (4--3)^2 + (y-9)^2
\n" ); document.write( "441 = 49 + y^2 -18y + 81
\n" ); document.write( "y^2 - 18y -311 = 0
\n" ); document.write( "Solve using the quadratic formula.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );