document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=72612>Question 72612</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the equation of the x-axis? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #51918 by </B><A HREF=/tutors/aboutme.mpl?userid=bucky><B>bucky(2189)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=bucky><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=51918\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The equation for the x-axis is:<BR>\n" );
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document.write( "y = 0<BR>\n" );
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document.write( "You can interpret this equation in this way ... x can be any value because since there are<BR>\n" );
document.write( "no x terms in this equation, whatever the value you choose for x makes no difference <BR>\n" );
document.write( "in this equation. x can be any value from minus infinity to plus infinity.<BR>\n" );
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document.write( "But whatever value you choose for x the corresponding value of y is always zero.<BR>\n" );
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document.write( "So for example (-100,0) (-10,0) (0,0) (5, 0) (250, 0) are all points that satisfy the equation<BR>\n" );
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document.write( "y = 0<BR>\n" );
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document.write( "and if you plot them you will find that they all are on the x-axis.<BR>\n" );
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document.write( "Hope this helps you to understand the reason and logic behind saying that the equation<BR>\n" );
document.write( "y = 0 is the equation for the x-axis.<BR>\n" );
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