document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1197239>Question 1197239</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine the equation of the vertical  line passing through the point (7,-2). </SPAN>\n" );
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document.write( "All vertical lines are of the form x = k<BR>\n" );
document.write( "k is some constant\r<BR>\n" );
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document.write( "In this case, <font color=red>the answer is x = 7</font> since the x coordinate of (7,-2) is 7.\r<BR>\n" );
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document.write( "Every point on this vertical line has the same x coordinate.<BR>\n" );
document.write( "Two such other points are (7,0) and (7,1)<BR>\n" );
document.write( "The x coordinate is fixed, or stuck, at 7.<BR>\n" );
document.write( "The y coordinate can be whatever you want.\r<BR>\n" );
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document.write( "Side notes: <BR>\n" );
document.write( "The slope of any vertical line is undefined.<BR>\n" );
document.write( "We cannot write vertical lines in the form y = mx+b since the slope m is undefined.<BR>\n" );
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