document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=702498>Question 702498</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do you graph x = 0 and it's a slanted line. i did this before but i forgot. can you tell me the equation and explain each step? thx </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #433300 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=433300\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=0 ALIGN=MIDDLE  ALT=\"x=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > represents the y-axis, the collection of points with <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=0 ALIGN=MIDDLE  ALT=\"x=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "We call it a vertical line.<BR>\n" );
document.write( "Any <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=constant ALIGN=MIDDLE  ALT=\"x=constant\"   DISABLED_style= \"max-width:90%; height:auto;\" > equation graphs as a vertical line.<BR>\n" );
document.write( "Any <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=constant ALIGN=MIDDLE  ALT=\"y=constant\"   DISABLED_style= \"max-width:90%; height:auto;\" > equation graph as a \"horizontal\" line.<BR>\n" );
document.write( "What I would call a slanted line has an equation with x and y.<BR>\n" );
document.write( "If the equation looks like y = (something)x + constant,<BR>\n" );
document.write( "then that something is the slope.<BR>\n" );
document.write( "To graph a slanted line, you need two points.<BR>\n" );
document.write( "You would want to calculate (and maybe tabulate) your points before you start graphing,<BR>\n" );
document.write( "so as to know what part of your x-axis and y-axis the graph must show.<BR>\n" );
document.write( "My table for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=3x-2 ALIGN=MIDDLE  ALT=\"y=3x-2\"   DISABLED_style= \"max-width:90%; height:auto;\" >would look like this:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28150%2C100%2C-2%2C4%2C-2%2C2%2C%0D%0Aline%28-2%2C0%2C4%2C0%29%2Cline%280%2C-2%2C0%2C2%29%2Cline%282%2C-2%2C2%2C2%29%2C%0D%0Alocate%28-1.2%2C-0.6%2Cy%29%2Clocate%28-1.2%2C1.2%2Cx%29%2C%0D%0Alocate%280.8%2C-0.6%2C-2%29%2Clocate%280.8%2C1.2%2C0%29%2C%0D%0Alocate%282.8%2C-0.6%2C4%29%2Clocate%282.8%2C1.2%2C2%29%0D%0A%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > with a row for the x's and a row for the y's,<BR>\n" );
document.write( "but vertical tables, with columns for the x's and y's may be more popular.<BR>\n" );
document.write( "Then, plotting the points, and connecting them with a straight line, would give you the graph:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28300%2C300%2C-5%2C5.5%2C-5%2C5.5%2C%0D%0Agrid%281%29%2C%0D%0Ablue%28circle%280%2C-2%2C0.2%29%29%2Cblue%28circle%282%2C4%2C0.2%29%29%2C%0D%0Ablue%28line%28-2%2C-8%2C3%2C7%29%29%0D%0A%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "You want to choose points that are easy to calculate and give you a good graph.<BR>\n" );
document.write( "Sometimes, if your two points are too close together, it is hard to draw the line accurately.<BR>\n" );
document.write( "If it does not work in your first try, try again.<BR>\n" );
document.write( "It could be easy to calculate two points.<BR>\n" );
document.write( "Often, making <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=0 ALIGN=MIDDLE  ALT=\"x=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > lets you easily calculate the corresponding value for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   DISABLED_style= \"max-width:90%; height:auto;\" >. That gives you the coordinates for one point.<BR>\n" );
document.write( "Often, making <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=0 ALIGN=MIDDLE  ALT=\"y=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > lets you easily calculate the corresponding value for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" >. That gives you the coordinates for one point. </SPAN>\n" );
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