document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=237274>Question 237274</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the shape of the graph of 9x+7y=-1000? how do you know?\r<BR>\n" );
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document.write( "please please please answer my question for once!!!!!!!!!!!!!!!!!!!!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #174498 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=174498\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> it's a straight line.\r<BR>\n" );
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document.write( "your equation is 9x + 7y = -1000\r<BR>\n" );
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document.write( "that would be the standard form for the equation of a straight line.\r<BR>\n" );
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document.write( "the standard form for the equation of a straight line is ax + by = c where:\r<BR>\n" );
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document.write( "a is the coefficient of the x term<BR>\n" );
document.write( "b is the coefficient of the y term<BR>\n" );
document.write( "c is the constant\r<BR>\n" );
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document.write( "it's a linear equation because none of the terms have a coefficient greater than 1.\r<BR>\n" );
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document.write( "the general form of the slope intercept form of this equation is y = mx + b where:\r<BR>\n" );
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document.write( "m is the slope and b is the y-intercept.\r<BR>\n" );
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document.write( "to convert from standard form to slope-intercept form, solve for y to get:\r<BR>\n" );
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document.write( "9x + 7y = -1000 is the original equation.<BR>\n" );
document.write( "subtract 9x from both sides to get:<BR>\n" );
document.write( "7y = -9x - 1000<BR>\n" );
document.write( "divide both sides of the equation by 7 to get:<BR>\n" );
document.write( "y = (-9/7)*x - (1000/7)\r<BR>\n" );
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document.write( "the slope is (-9/7) which replaces m from the general form.\r<BR>\n" );
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document.write( "the y-intercept is - (1000/7) which replaces b from the general form.\r<BR>\n" );
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document.write( "to graph this equation, you have to convert it to the slope-intercept form which is the same as solving for y.\r<BR>\n" );
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document.write( "the gtraph of this equation looks like:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph+%28400%2C400%2C-200%2C200%2C-200%2C200%2C%28-9%2F7%29x-%281000%2F7%29%29 ALIGN=MIDDLE  ALT=\"graph+%28400%2C400%2C-200%2C200%2C-200%2C200%2C%28-9%2F7%29x-%281000%2F7%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "you can see from the graph that when x = 0, y = -1000/7 = -142.\r<BR>\n" );
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document.write( "you can also see from the graph that when y = 0, x = -111.\r<BR>\n" );
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document.write( "you can't see exactly, but you can see that they're in the vicinity.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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