document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=174418>Question 174418</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780495389736/algebrahomeworkh>intermediate algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> the linear equation x =-1 graphs as a horizontal/ vertical / diagonal line. Describe how to determine this answer. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #129391 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=129391\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Since <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-1 ALIGN=MIDDLE  ALT=\"x=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" >, this means that EVERY point on the line has an x-coordinate of -1. So we have the points \r<BR>\n" );
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document.write( "(-1,-2),(-1,-1),(-1,0),(-1,1),(-1,2)(-1,3), etc...\r<BR>\n" );
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document.write( "Notice how EVERY point has an x-coordinate of -1\r<BR>\n" );
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document.write( "Now let's plot the points\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28+500%2C+500%2C+-7%2C+7%2C+-7%2C+7%2C%0D%0Agraph%28+500%2C+500%2C+-7%2C+7%2C+-7%2C+7%2C+0%29%2C%0D%0Acircle%28-1%2C-2%2C0.03%29%2C%0D%0Acircle%28-1%2C-2%2C0.05%29%2C%0D%0Acircle%28-1%2C-2%2C0.08%29%2C%0D%0A%0D%0Acircle%28-1%2C-1%2C0.03%29%2C%0D%0Acircle%28-1%2C-1%2C0.05%29%2C%0D%0Acircle%28-1%2C-1%2C0.08%29%2C%0D%0A%0D%0Acircle%28-1%2C0%2C0.03%29%2C%0D%0Acircle%28-1%2C0%2C0.05%29%2C%0D%0Acircle%28-1%2C0%2C0.08%29%2C%0D%0A%0D%0Acircle%28-1%2C1%2C0.03%29%2C%0D%0Acircle%28-1%2C1%2C0.05%29%2C%0D%0Acircle%28-1%2C1%2C0.08%29%2C%0D%0A%0D%0A%0D%0Acircle%28-1%2C2%2C0.03%29%2C%0D%0Acircle%28-1%2C2%2C0.05%29%2C%0D%0Acircle%28-1%2C2%2C0.08%29%2C%0D%0A%0D%0A%0D%0Acircle%28-1%2C3%2C0.03%29%2C%0D%0Acircle%28-1%2C3%2C0.05%29%2C%0D%0Acircle%28-1%2C3%2C0.08%29%0D%0A%0D%0A%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Now draw a line through the points\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28+500%2C+500%2C+-7%2C+7%2C+-7%2C+7%2C%0D%0Agraph%28+500%2C+500%2C+-7%2C+7%2C+-7%2C+7%2C+0%29%2C%0D%0Ablue%28line%28-1%2C-20%2C-1%2C20%29%29%2C%0D%0Acircle%28-1%2C-2%2C0.03%29%2C%0D%0Acircle%28-1%2C-2%2C0.05%29%2C%0D%0Acircle%28-1%2C-2%2C0.08%29%2C%0D%0A%0D%0Acircle%28-1%2C-1%2C0.03%29%2C%0D%0Acircle%28-1%2C-1%2C0.05%29%2C%0D%0Acircle%28-1%2C-1%2C0.08%29%2C%0D%0A%0D%0Acircle%28-1%2C0%2C0.03%29%2C%0D%0Acircle%28-1%2C0%2C0.05%29%2C%0D%0Acircle%28-1%2C0%2C0.08%29%2C%0D%0A%0D%0Acircle%28-1%2C1%2C0.03%29%2C%0D%0Acircle%28-1%2C1%2C0.05%29%2C%0D%0Acircle%28-1%2C1%2C0.08%29%2C%0D%0A%0D%0A%0D%0Acircle%28-1%2C2%2C0.03%29%2C%0D%0Acircle%28-1%2C2%2C0.05%29%2C%0D%0Acircle%28-1%2C2%2C0.08%29%2C%0D%0A%0D%0A%0D%0Acircle%28-1%2C3%2C0.03%29%2C%0D%0Acircle%28-1%2C3%2C0.05%29%2C%0D%0Acircle%28-1%2C3%2C0.08%29%0D%0A%0D%0A%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So we can see that the graph of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-1 ALIGN=MIDDLE  ALT=\"x=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" > is a vertical line.\r<BR>\n" );
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document.write( "Note: ANY equation in the form <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=k ALIGN=MIDDLE  ALT=\"x=k\"   DISABLED_style= \"max-width:90%; height:auto;\" > where \"k\" is any number will graph a vertical line.  </SPAN>\n" );
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