document.write( "Question 326989: For the systems of linear equation, determine how many solution exist, use either elimination or substitution to find the solution(if any), explain the two lines, labeling the x-intercepts, y-intercepts, and points of intersection y=2x +3 and y = -x - 4 \n" ); document.write( "
Algebra.Com's Answer #234230 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Since they both equal y set them equal to each other to eliminate y.
\n" ); document.write( "\"2x%2B3=-x-4\"
\n" ); document.write( "\"3x=-7\"
\n" ); document.write( "\"highlight%28x=-7%2F3%29\"
\n" ); document.write( "Now use either equation to solve for y.
\n" ); document.write( "\"y=7%2F3-4\"
\n" ); document.write( "\"y=7%2F3x-12%2F3\"
\n" ); document.write( "\"highlight%28y=-5%2F3%29\"
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "\"y=2x+%2B3\"
\n" ); document.write( "To find x intercept, set y=0 solve for x.
\n" ); document.write( "\"0=2x%2B3\"
\n" ); document.write( "\"2x=-3\"
\n" ); document.write( "\"x=-3%2F2\"
\n" ); document.write( "(-3/2,0)
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "To find y intercept, set x=0 solve for y.
\n" ); document.write( "\"y=2x%2B3\"
\n" ); document.write( "\"y=3\"
\n" ); document.write( "(0,3)
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "\"y=-x-4\"
\n" ); document.write( "To find x intercept, set y=0 solve for x.
\n" ); document.write( "\"0=-x-4\"
\n" ); document.write( "\"x=-4\"
\n" ); document.write( "(-4,0)
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "To find y intercept, set x=0 solve for y.
\n" ); document.write( "\"y=-x-4\"
\n" ); document.write( "\"y=-4\"
\n" ); document.write( "(0,-4)
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "Now plot all of that information.
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "
\n" ); document.write( "
\n" );