document.write( "Question 175627: Concept Check for Week 4: explain in your own words why the line x = 4 is a vertical line. \n" ); document.write( "

Algebra.Com's Answer #130699 by josmiceli(19441) $\"\"$ $\"About$

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In MY own words,
\n" ); document.write( " $\"x=4\"$ is a vertical line because, since
\n" ); document.write( " $\"y\"$ is not even mentioned, then $\"y\"$ can
\n" ); document.write( "be anything I want it to be, but $\"x\"$ can
\n" ); document.write( "never be anything but $\"4\"$ . There is no other
\n" ); document.write( "line except a vertical one that can fill these
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