document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=403111>Question 403111</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let f be a linear function. If f(&#8722;3) = 7and f(2) = &#8722;13,find f(x). </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #285097 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=285097\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> linear means ___ f(x) = mx + b\r<BR>\n" );
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document.write( "7 = m(-3) + b ___ 7 = -3m + b\r<BR>\n" );
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document.write( "-13 = m(2) + b ___ -13 = 2m + b\r<BR>\n" );
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document.write( "subtracting equations (eliminating b) ___ 20 = -5m ___ -4 = m\r<BR>\n" );
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document.write( "substituting ___ 7 = -3(-4) + b ___ -5 = b\r<BR>\n" );
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document.write( "f(x) = -4x - 5 </SPAN>\n" );
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