document.write( "Question 121909: Can you give me a detailed explanation why the line x=4 is a vertical line?\r
\n" ); document.write( "\n" ); document.write( "Thanks in advance
\n" ); document.write( "Sydoni \n" ); document.write( "

Algebra.Com's Answer #89492 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let's say you were asked to plot 10 points, and the points had
\n" ); document.write( "to be of the form (4,y) where $\"y\"$ could be any number. You
\n" ); document.write( "might come up with
\n" ); document.write( "(4,3)
\n" ); document.write( "(4,-5)
\n" ); document.write( "(4,9)
\n" ); document.write( "(4,120)
\n" ); document.write( "(4,55)
\n" ); document.write( "(4,1000)
\n" ); document.write( "(4,0)
\n" ); document.write( "(4,80)
\n" ); document.write( "(4,4)
\n" ); document.write( "(4,-500)
\n" ); document.write( "If you plot these you get a vertical line
\n" ); document.write( "If you use any other values for $\"y\"$ , you still get a vertical line
\n" ); document.write( "The only thing all these different sets of points have in common is
\n" ); document.write( " $\"x+=+4\"$ . All the $\"y\"$ values I can possible come up with will
\n" ); document.write( "be on that vertical line \n" ); document.write( "

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