document.write( "Question 85023: Solve the system by graphing.
\n" ); document.write( " 3x + y = –1
\n" ); document.write( " 9x + 3y = –3
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #61251 by tutorcecilia(2152)\"\" \"About 
You can put this solution on YOUR website!
3x + y = –1 [re-write in the slope-intercept format (y=mx+b)]
\n" ); document.write( "3x -3x +y=-1 -3x
\n" ); document.write( "y=-3x-1
\n" ); document.write( "and
\n" ); document.write( "9x + 3y = –3 [re-write in the slope-intercept format (y=mx+b)]
\n" ); document.write( "9x-9x+3y=-9x-3
\n" ); document.write( "3y=-9x-3
\n" ); document.write( "3y/3=-9x/3- 3/3
\n" ); document.write( "y=-3x-1\r
\n" ); document.write( "\n" ); document.write( ".
\n" ); document.write( "Graph both equations. Since both equations are the same, they are the same line and will show up on the graph as a single line. The y-intercept will be (0, -1). The x-intercept will be (-1/3, 0) and the slope will be (-3/1) and 3/-1).\r
\n" ); document.write( "\n" ); document.write( "\"+graph%28+300%2C+200%2C+-4%2C+5%2C+-4%2C+10%2C+-3x-1+%29+\"
\n" ); document.write( " \n" ); document.write( "
\n" );