document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=5893>Question 5893</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Okay here is the question.<BR>\n" );
document.write( "Take a look at the table below and write out an equation for f(x).\r<BR>\n" );
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document.write( "x -2 -1 0 1 2 <BR>\n" );
document.write( "f(x) -5 -2 1 4 7 \r<BR>\n" );
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document.write( "Now. Here is what I thought might be right. Follow the y2-y1/x2-x1 and put in some numbers. So I put in 7-4/2-1 which  = 3/1<BR>\n" );
document.write( "So then the equation I got was y=(3/1)x+b<BR>\n" );
document.write( "Is that the correct answer? I don't really know whether or not I found what was specified. Thank you for all your help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #3079 by </B><A HREF=/tutors/aboutme.mpl?userid=longjonsilver><B>longjonsilver(2297)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=longjonsilver><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=longjonsilver><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=3079\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> basically we have:\r<BR>\n" );
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document.write( "-2 -1  0  1  2 <BR>\n" );
document.write( "-5 -2  1  4  7\r<BR>\n" );
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document.write( "Look at the differences in the f(x) values --> all have a difference of 3 (where the x-values are increasing regularly)...so we have a 3-times table in effect.\r<BR>\n" );
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document.write( "Look at x=1 --> 3x1 is 3, but we have answer 4, so add 1. Now check others:<BR>\n" );
document.write( "x=2 --> 3x2 is 6 and +1 is 7 --> correct.\r<BR>\n" );
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document.write( "So, answer looks to be f(x) = 3x+1\r<BR>\n" );
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document.write( "jon.<BR>\n" );
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