document.write( "Question 864440: X^2 + y^2 = 153
\n" ); document.write( "Y = -4x \n" ); document.write( "

Algebra.Com's Answer #521016 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
1. $\"x%5E2%2By%5E2=+153\"$
\n" ); document.write( "2. $\"y+=+-4x\"$
\n" ); document.write( "From eq. 2,
\n" ); document.write( " $\"y%5E2=16x%5E2\"$
\n" ); document.write( "Substitute into eq. 1,
\n" ); document.write( " $\"x%5E2%2B16x%5E2=153\"$
\n" ); document.write( " $\"17x%5E2=153\"$
\n" ); document.write( " $\"x%5E2=9\"$
\n" ); document.write( " $\"x=0+%2B-+3\"$
\n" ); document.write( "When $\"x=3\"$ , $\"y=-12\"$
\n" ); document.write( "When $\"x=-3\"$ , $\"y=12\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "

\n" ); document.write( "

\n" );