document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1207373>Question 1207373</A>: <I><SPAN STYLE=\"word-break: break-all;\"> graph x+4y=20 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #845208 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=845208\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> you want to graph x + 4y = 20\r<BR>\n" );
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document.write( "for most graphing software, you need to solve for y.\r<BR>\n" );
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document.write( "take x + 4y = 20 and subtract x from both sides and then divide both sides by 4 to get 4y = 20 - x which becomes y = (20 - x) / 4\r<BR>\n" );
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document.write( "for slope and y-intercept information, you would would want to convert to slope intercept form of y = mx + b, where m is the slope and b is the y-intercept.<BR>\n" );
document.write( "additionally, you may wish to find the x-intercept.\r<BR>\n" );
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document.write( "the desmos.com software will allow you to graph any of these forms.\r<BR>\n" );
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document.write( "to convert to slope intercept form, you are basically solving for y and then ordering the terms in descending order of degree.\r<BR>\n" );
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document.write( "for example, you already solved for y to get y = (20 - x) / 4.<BR>\n" );
document.write( "simplify this to get y = 20/4 - x/4 which can further be simplified to y = 54 - x/4.\r<BR>\n" );
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document.write( "you then arrange the terms in descending order of degree to get y = -x/4 + 5.\r<BR>\n" );
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document.write( "all 3 forms are shown on the graph.<BR>\n" );
document.write( "you can see that they all draw the same figure on the graph.<BR>\n" );
document.write( "that's because they're all equivalent to each other.\r<BR>\n" );
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document.write( "the slope of this equation is -1/4.<BR>\n" );
document.write( "the y-intercept is the value of y when x is equal to 0 which is equal to 5.<BR>\n" );
document.write( "the x-intercept is the value of x when y is equal to 0 which is equal to 20.\r<BR>\n" );
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