document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=933700>Question 933700</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose the annual salary of a lecturer at a university is a linear function of the number of years of teaching experience. A lecturer with 9 years of experience is paid $41, 350. A lecturer with 15 years experience of teaching experience is paid $46, 687.<BR>\n" );
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document.write( "A). Write a linear function to describe this situation.<BR>\n" );
document.write( "B). Use the function to determine the salary of a lecturer with 10 years of experience.<BR>\n" );
document.write( "C). Estimate how many years of teaching experience a lecturer must have to earn a salary of $44, 908.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #567000 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=567000\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
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document.write( "a linear function:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=mx%2Bb ALIGN=MIDDLE  ALT=\"y=mx%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "A). Write a linear function to describe this situation.\r<BR>\n" );
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document.write( "A lecturer with <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9 ALIGN=MIDDLE  ALT=\"9\"   DISABLED_style= \"max-width:90%; height:auto;\" > years of experience is paid $<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=41350 ALIGN=MIDDLE  ALT=\"41350\"   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=x=9 ALIGN=MIDDLE  ALT=\"x=9\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=41350 ALIGN=MIDDLE  ALT=\"y=41350\"   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=41350=m%2A9%2Bb ALIGN=MIDDLE  ALT=\"41350=m%2A9%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > ....eq.1\r<BR>\n" );
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document.write( "A lecturer with 15 years experience of teaching experience is paid $<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=46687 ALIGN=MIDDLE  ALT=\"46687\"   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=x=15 ALIGN=MIDDLE  ALT=\"x=15\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=46687 ALIGN=MIDDLE  ALT=\"y=46687\"   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=46687=m%2A15%2Bb ALIGN=MIDDLE  ALT=\"46687=m%2A15%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > ....eq.2\r<BR>\n" );
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document.write( "solve this system to find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m ALIGN=MIDDLE  ALT=\"m\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b ALIGN=MIDDLE  ALT=\"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=41350=9m%2Bb ALIGN=MIDDLE  ALT=\"41350=9m%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > ....eq.1<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=46687=15m%2Bb ALIGN=MIDDLE  ALT=\"46687=15m%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > ....eq.2<BR>\n" );
document.write( "_________________.....subtract eq.1 from eq.2\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=46687-41350=15m%2Bb-%289m%2Bb%29 ALIGN=MIDDLE  ALT=\"46687-41350=15m%2Bb-%289m%2Bb%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=5337=15m%2Bcross%28b%29-9m-cross%28b%29 ALIGN=MIDDLE  ALT=\"5337=15m%2Bcross%28b%29-9m-cross%28b%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=5337=6m ALIGN=MIDDLE  ALT=\"5337=6m\"   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=5337%2F6=m ALIGN=MIDDLE  ALT=\"5337%2F6=m\"   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=m=889.5 ALIGN=MIDDLE  ALT=\"m=889.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "go to eq.1 substitute m and solve for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b ALIGN=MIDDLE  ALT=\"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=41350=9%2A889.5%2Bb ALIGN=MIDDLE  ALT=\"41350=9%2A889.5%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > ....eq.1\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=41350=8005.5%2Bb ALIGN=MIDDLE  ALT=\"41350=8005.5%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=41350-8005.5=b ALIGN=MIDDLE  ALT=\"41350-8005.5=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=b=33344.5 ALIGN=MIDDLE  ALT=\"b=33344.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "your equation is:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=889.5x%2B33344.5 ALIGN=MIDDLE  ALT=\"y=889.5x%2B33344.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "B). Use the function to determine the salary of a lecturer with <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10 ALIGN=MIDDLE  ALT=\"10\"   DISABLED_style= \"max-width:90%; height:auto;\" > years of experience.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=10 ALIGN=MIDDLE  ALT=\"x=10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=889.5%2A10%2B33344.5 ALIGN=MIDDLE  ALT=\"y=889.5%2A10%2B33344.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=8895%2B33344.5 ALIGN=MIDDLE  ALT=\"y=8895%2B33344.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=42239.5 ALIGN=MIDDLE  ALT=\"y=42239.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "C). Estimate how many years of teaching experience a lecturer must have to earn a salary of $<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=44908 ALIGN=MIDDLE  ALT=\"44908\"   DISABLED_style= \"max-width:90%; height:auto;\" >. \r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=44908=889.5x%2B33344.5 ALIGN=MIDDLE  ALT=\"44908=889.5x%2B33344.5\"   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=44908-33344.5=889.5x ALIGN=MIDDLE  ALT=\"44908-33344.5=889.5x\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=11563.5=889.5x ALIGN=MIDDLE  ALT=\"11563.5=889.5x\"   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=11563.5%2F889.5=x ALIGN=MIDDLE  ALT=\"11563.5%2F889.5=x\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13=x ALIGN=MIDDLE  ALT=\"13=x\"   DISABLED_style= \"max-width:90%; height:auto;\" > years of teaching experience a lecturer must have to earn a salary of $<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=44908 ALIGN=MIDDLE  ALT=\"44908\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );