document.write( "Question 391197: How do I go about solving this: \"equation of vertical line that contains (-4, 8) its would also be great if you could tell me the general linear form. I have no idea how to begin solving this because I do not have the formula. Please and thank you very much. \n" ); document.write( "
Algebra.Com's Answer #277487 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
How do I go about solving this: \"equation of vertical line that contains
\n" ); document.write( "(-4, 8) its would also be great if you could tell me the general linear form. I
\n" ); document.write( "have no idea how to begin solving this because I do not have the formula.
\n" ); document.write( "Please and thank you very much.
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document.write( "The form is different for vertical lines than for all other lines.  That's\r\n" );
document.write( "because the slope of vertical lines is undefined.  Vertical lines are\r\n" );
document.write( "considered to be \"infinitely steep\". The equation for a vertical line is done\r\n" );
document.write( "this way:\r\n" );
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document.write( "Here is the given point the vertical line goes through:\r\n" );
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document.write( "Here is the vertical line:\r\n" );
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document.write( "Now let's look at a whole bunch of other points on that line:\r\n" );
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document.write( "Now let's ask the question:  What is true about every one of those points?\r\n" );
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document.write( "Answer:  Every one of them has its x-coordinate as -4.\r\n" );
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document.write( "Therefore the only equation that tells the whole story of that\r\n" );
document.write( "vertical line is the statement that means:\r\n" );
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document.write( "   \" x is always -4 \"\r\n" );
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document.write( "and that is the very simple equation:\r\n" );
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document.write( "        x = -4\r\n" );
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document.write( "So that's all there is to the equation of that vertical line.\r\n" );
document.write( "Every point on a vertical line has its x-value the same.  In\r\n" );
document.write( "this case it is -4.  So the equation of that green vertical line is\r\n" );
document.write( "simply: \r\n" );
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document.write( "        x = -4\r\n" );
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document.write( "There is no solving needed to get the equation of a vertical line.  It's\r\n" );
document.write( "just x = ___  where you fill a number in the blank which is the x-coordinate\r\n" );
document.write( "of any point on the line, since they're all the same.\r\n" );
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document.write( "Edwin
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