document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=30484>Question 30484</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given these points (20, 30) and (50, 65)\r<BR>\n" );
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document.write( "Find linear model y=ax+b </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #17125 by </B><A HREF=/tutors/aboutme.mpl?userid=atif.muhammad><B>atif.muhammad(135)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=atif.muhammad><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=17125\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Let's find \"a\" first:\r<BR>\n" );
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document.write( "(20,30)<BR>\n" );
document.write( "(50,65)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+%2865-30%29%2F%2850-20%29 ALIGN=MIDDLE  ALT=\"a+=+%2865-30%29%2F%2850-20%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=a+=+35%2F30 ALIGN=MIDDLE  ALT=\"a+=+35%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "y = ax + b\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=+%2835%2F30%29x+%2B+b ALIGN=MIDDLE  ALT=\"y=+%2835%2F30%29x+%2B+b\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "(20,30)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+30+=+%2835%2F30%29%2A+20+%2Bb ALIGN=MIDDLE  ALT=\"+30+=+%2835%2F30%29%2A+20+%2Bb\"   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=+900%2F30+=+%28700%2F30%29+%2Bb+ ALIGN=MIDDLE  ALT=\"+900%2F30+=+%28700%2F30%29+%2Bb+\"   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=+200%2F30+=+b ALIGN=MIDDLE  ALT=\"+200%2F30+=+b\"   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+=+ax+%2B+b ALIGN=MIDDLE  ALT=\"+y+=+ax+%2B+b\"   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+=+%2835%2F30%29x+%2B+200%2F30 ALIGN=MIDDLE  ALT=\"+y+=+%2835%2F30%29x+%2B+200%2F30\"   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=+%2835x+%2B+200%29%2F30 ALIGN=MIDDLE  ALT=\"+y=+%2835x+%2B+200%29%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );