document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=43530>Question 43530</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I can't figure out this problem:\r<BR>\n" );
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document.write( "Write the equation of the line passing through (4, 4) and (4, 2).\r<BR>\n" );
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document.write( "Choices are:<BR>\n" );
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document.write( "A) y = 4                     C) x = 4\r<BR>\n" );
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document.write( "B) y = -2x                   D) y = x + 4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #28534 by </B><A HREF=/tutors/aboutme.mpl?userid=jake_6233><B>jake_6233(74)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jake_6233><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=28534\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A) y = 4 C) x = 4 <BR>\n" );
document.write( "B) y = -2x D) y = x + 4\r<BR>\n" );
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document.write( "The first thing to do is calculate the slope of your line<BR>\n" );
document.write( " <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=y%282%29-y%281%29%2Fx%282%29-x%281%29 ALIGN=MIDDLE  ALT=\"m=y%282%29-y%281%29%2Fx%282%29-x%281%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > (these are subscripts not exponents) we get 2/0 which means that we have a vertical line or x=4 (both x values are 4 in your two points)\r<BR>\n" );
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