document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=173602>Question 173602</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Take a look at the table below and write out an equation for f(x).  I put \":\" and commas to stipulate where there would be a line to box them in...like a table etc.  \r<BR>\n" );
document.write( "\n" );
document.write( "x: -2, -1, 0, 1, 2 <BR>\n" );
document.write( "f(x): -1, 1, 3, 5, 7 \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #128478 by </B><A HREF=/tutors/aboutme.mpl?userid=303795><B>303795(602)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=303795><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=128478\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The x's are going up by 1 and f(x) goes up by 2. This means that part of the rule will be<BR>\n" );
document.write( "f(x)=2x<BR>\n" );
document.write( "Test this rule against the numbers in your table.<BR>\n" );
document.write( "If x=2 then 2x=4 but f(x) = 7 which is 3 more than the current part of the rule gives so change the rule to<BR>\n" );
document.write( "f(x)=2x+3<BR>\n" );
document.write( "Check this rule against the numbers in your table. It should work for all x values now. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );