document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=125495>Question 125495</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the equation of a horizontal line that passes through the point at <BR>\n" );
document.write( "(-2,-3)????<BR>\n" );
document.write( "I do not understand this question could someone please help? thank u </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #91941 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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/cgi-bin/show-face.mpl?user=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=91941\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The essential characteristic of a horizontal line is that the y-coordinates of every point on the line are equal, and the x-coordinates are the set of all real numbers.\r<BR>\n" );
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document.write( "In order for the line to pass through the point (-2,-3), every point on the line must have a y coordinate of -3.  So the equation is simply <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-3 ALIGN=MIDDLE  ALT=\"y=-3\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Another way to look at it is that a horizontal line has a slope of zero, so using the point-slope form of the straight line:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-y%5B1%5D=m%28x-x%5B1%5D%29 ALIGN=MIDDLE  ALT=\"y-y%5B1%5D=m%28x-x%5B1%5D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, you get:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-%28-3%29=0%28x-%28-2%29%29 ALIGN=MIDDLE  ALT=\"y-%28-3%29=0%28x-%28-2%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%2B3=0 ALIGN=MIDDLE  ALT=\"y%2B3=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-3 ALIGN=MIDDLE  ALT=\"y=-3\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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