document.write( "Question 918602: Identify the graph of the linear equation 2x + 2y − z = −4 in three dimensional space. \r
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Algebra.Com's Answer #557196 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
All three points must satisfy the equation.
\n" ); document.write( "\"2x%2B2y-z=-4\"
\n" ); document.write( "(0,0,4)
\n" ); document.write( "\"2%280%29%2B2%280%29-4=-4\"
\n" ); document.write( "\"-4=-4\"
\n" ); document.write( "True
\n" ); document.write( "(2,0,0)
\n" ); document.write( "\"2%282%29%2B2%280%29-0=-4\"
\n" ); document.write( "\"4=-4\"
\n" ); document.write( "False
\n" ); document.write( "So graph 1 is not a solution.
\n" ); document.write( "Do the same for the other three graphs until you get one that yield true for all three points.\r
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