document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1143048>Question 1143048</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am trying to determine the value of \"x\" from the following problem:\r<BR>\n" );
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document.write( "\"This linear equation; What function of f(x) when x = 0\"?\r<BR>\n" );
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document.write( "      (x)                    f(x)\r<BR>\n" );
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document.write( "       2                     30\r<BR>\n" );
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document.write( "       9                     16\r<BR>\n" );
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document.write( "       x                     10\r<BR>\n" );
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document.write( "I tried drawing a graph, but it was not linear because I thought x was 3, since it is 1/2 the difference of 16 and 10. (The pattern is the same for the previous numbers). </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #763806 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=763806\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You are given 2 actual points, which is enough<BR>\n" );
document.write( "to give you the slope<BR>\n" );
document.write( "( 2,30 )<BR>\n" );
document.write( "( 9,16 )<BR>\n" );
document.write( "The slope is [ change in y ] / [ change in x ]<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+m+=+%28+30+-+16+%29+%2F+%28+2+-+9+%29+ ALIGN=MIDDLE  ALT=\"+m+=+%28+30+-+16+%29+%2F+%28+2+-+9+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+m+=+14+%2F+%28-7%29++ ALIGN=MIDDLE  ALT=\"+m+=+14+%2F+%28-7%29++\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+m+=+-2+ ALIGN=MIDDLE  ALT=\"+m+=+-2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "Now you can use point ( x, 10 ) and either of the <BR>\n" );
document.write( "given points to find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+ ALIGN=MIDDLE  ALT=\"+x+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+30+-+10+%29+%2F+%28+2+-+x+%29+=+-2+ ALIGN=MIDDLE  ALT=\"+%28+30+-+10+%29+%2F+%28+2+-+x+%29+=+-2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+20+%2F+%28+2+-+x+%29+=+-2+ ALIGN=MIDDLE  ALT=\"+20+%2F+%28+2+-+x+%29+=+-2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2+-+x+=+20%2F%28-2%29+ ALIGN=MIDDLE  ALT=\"+2+-+x+=+20%2F%28-2%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2+-+x+=+-10+ ALIGN=MIDDLE  ALT=\"+2+-+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=+x+=+12+ ALIGN=MIDDLE  ALT=\"+x+=+12+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "Find the equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+m%2Ax+%2B+b+ ALIGN=MIDDLE  ALT=\"+y+=+m%2Ax+%2B+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+%28-2%29%2Ax+%2B+b+ ALIGN=MIDDLE  ALT=\"+y+=+%28-2%29%2Ax+%2B+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Use the point ( 12, 10 ) or one of the other 2 points<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+10+=+%28-2%29%2A12+%2B+b+ ALIGN=MIDDLE  ALT=\"+10+=+%28-2%29%2A12+%2B+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+10+=+-24+%2B+b+ ALIGN=MIDDLE  ALT=\"+10+=+-24+%2B+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+34+ ALIGN=MIDDLE  ALT=\"+b+=+34+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The equation is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+-2x+%2B+34+ ALIGN=MIDDLE  ALT=\"+y+=+-2x+%2B+34+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-------------------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "does it go through ( 9, 16 ) ?<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+16+=+-2%2A9+%2B+34+ ALIGN=MIDDLE  ALT=\"+16+=+-2%2A9+%2B+34+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+16+=+-18+%2B+34+ ALIGN=MIDDLE  ALT=\"+16+=+-18+%2B+34+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+16+=+16+ ALIGN=MIDDLE  ALT=\"+16+=+16+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK<BR>\n" );
document.write( "You can check ( 2, 30 )\r<BR>\n" );
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document.write( " </SPAN>\n" );
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