document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=871241>Question 871241</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The total question is the following:<BR>\n" );
document.write( "Graph the inequalities 9x+8y<72 and -7x-4y<=28 to find their solution set. Also, find their point of intersection. I also had to choose a graphing method for 9x+8y<72. I found the slope to be -9/8 with the y intercept being 0, 9. I then had to find a graphing method for -7x-4y<=28. I found that the slope was -7/4  and the y-intercept was 0,-7. I am unable to find the x and y coordinates of the intersection points. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #525411 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=525411\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You can treat the two inequalities as equations and find that point of intersection.  \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8y=-9x%2B72 ALIGN=MIDDLE  ALT=\"8y=-9x%2B72\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=%28-9x%2B72%29%2F8 ALIGN=MIDDLE  ALT=\"y=%28-9x%2B72%29%2F8\"   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=-4y=7x%2B28 ALIGN=MIDDLE  ALT=\"-4y=7x%2B28\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=%287x%2B28%29%2F%28-4%29 ALIGN=MIDDLE  ALT=\"y=%287x%2B28%29%2F%28-4%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=%28-9x%2B72%29%2F8=%287x%2B28%29%2F%28-4%29 ALIGN=MIDDLE  ALT=\"%28-9x%2B72%29%2F8=%287x%2B28%29%2F%28-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2872-9x%29%2F8=%287x%2B28%29%2F%28-4%29 ALIGN=MIDDLE  ALT=\"%2872-9x%29%2F8=%287x%2B28%29%2F%28-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "mult b.s. by 8<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72-9x=-2%287x%2B28%29 ALIGN=MIDDLE  ALT=\"72-9x=-2%287x%2B28%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72-9x=14x-56 ALIGN=MIDDLE  ALT=\"72-9x=14x-56\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72%2B56=14x%2B9x ALIGN=MIDDLE  ALT=\"72%2B56=14x%2B9x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "23x=<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=128%2F23%29 ALIGN=MIDDLE  ALT=\"highlight%28x=128%2F23%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, meaning <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=63%2F23%29 ALIGN=MIDDLE  ALT=\"highlight%28y=63%2F23%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Does that point satisfy the inequality system?<BR>\n" );
document.write( "9x+8y<72  AND  -7x-4y<=28<BR>\n" );
document.write( "9(128/23)+8(63/23)<72  AND -7(128/23)-4(63/23)<=28 ?<BR>\n" );
document.write( "IF BOTH TRUE, then you include this intersection point; otherwise exclude this point.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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