document.write( "Question 292452: Why the line x=4 is a vertical line? (50 words response) \n" ); document.write( "
Algebra.Com's Answer #211491 by richwmiller(17219)\"\" \"About 
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What does 50 word response mean?
\n" ); document.write( "No less than 50 words?
\n" ); document.write( "No more than 50 words?
\n" ); document.write( "Exactly 50 words?\r
\n" ); document.write( "\n" ); document.write( "\"x\" never changes but y does.
\n" ); document.write( "\"y\" can be anything but x stays the same.
\n" ); document.write( "The line has an undefined slope.
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