document.write( "Question 59713: When graphing the fallowing system the two lines __________________.
\n" ); document.write( "x+y=4
\n" ); document.write( "x+y=-4\r
\n" ); document.write( "\n" ); document.write( "a) are Parallel
\n" ); document.write( "b) intersect at one point
\n" ); document.write( "c) are the same
\n" ); document.write( "d) intersect at two points
\n" ); document.write( "e) none of the above
\n" ); document.write( "

Algebra.Com's Answer #41026 by funmath(2933)\"\" \"About 
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When graphing the following system the two lines __________________.
\n" ); document.write( "x+y=4
\n" ); document.write( "x+y=-4\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28a%29\" are Parallel
\n" ); document.write( "b) intersect at one point
\n" ); document.write( "c) are the same
\n" ); document.write( "d) intersect at two points
\n" ); document.write( "e) none of the above
\n" ); document.write( ":
\n" ); document.write( "For the first equation let x=0 and y=4 Plot (0,4)
\n" ); document.write( "Then let y=0 and x=4 Plot (4,0)
\n" ); document.write( "Connect the points and you have a line.
\n" ); document.write( "For the second equation, let x=0 and y=-4
\n" ); document.write( "then let y=0 and x=-4
\n" ); document.write( "Connect the points and you have a second line.
\n" ); document.write( "Take a look:
\n" ); document.write( "\"graph%28300%2C200%2C-10%2C10%2C-10%2C10%2C-x%2B4%2C-x-4%29\"
\n" ); document.write( "
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