document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1133394>Question 1133394</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the slope of the line through the points P and Q when:\r<BR>\n" );
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document.write( "a. P(1,3) and Q(x, x2+3x-1)\r<BR>\n" );
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document.write( "b. P(x, x2+3x-1) and Q(x+h, (x+h)2+3(x+h)-1) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #750589 by </B><A HREF=/tutors/aboutme.mpl?userid=math_helper><B>math_helper(2461)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_helper><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=math_helper><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=750589\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For two points (<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5B0%5D ALIGN=MIDDLE  ALT=\"x%5B0%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" >,<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%5B0%5D ALIGN=MIDDLE  ALT=\"y%5B0%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" >) and (<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5B1%5D ALIGN=MIDDLE  ALT=\"x%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" >,<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%5B1%5D ALIGN=MIDDLE  ALT=\"y%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" >), the slope m is the rise over run: m = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28y%5B1%5D-y%5B0%5D%29+%2F+%28x%5B1%5D-x%5B0%5D%29 ALIGN=MIDDLE  ALT=\"+%28y%5B1%5D-y%5B0%5D%29+%2F+%28x%5B1%5D-x%5B0%5D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br>\r<BR>\n" );
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document.write( "Just plug in the values given:\r<BR>\n" );
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document.write( "(a)  m = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28%28x%5E2%2B3x-1%29-3%29+%2F+%28x-1%29+ ALIGN=MIDDLE  ALT=\"+%28%28x%5E2%2B3x-1%29-3%29+%2F+%28x-1%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  <BR>\n" );
document.write( "and reduce...\r<BR>\n" );
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document.write( "I got  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+m+=+x%2B4+ ALIGN=MIDDLE  ALT=\"+m+=+x%2B4+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, with the restriction <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+%3C%3E+1 ALIGN=MIDDLE  ALT=\"x+%3C%3E+1\"   DISABLED_style= \"max-width:90%; height:auto;\" > <br>\r<BR>\n" );
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document.write( "Part (b) is done similarly </SPAN>\n" );
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