document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=499368>Question 499368</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Input.    | 0 | 1 | 2 | 3 | 4 |<BR>\n" );
document.write( "Output. |-1 | 3 | 7 | 11| 13\r<BR>\n" );
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document.write( "Write a rule for the function  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #337623 by </B><A HREF=/tutors/aboutme.mpl?userid=chessace><B>chessace(471)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=chessace><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=chessace><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=337623\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Output differences are all 4 until the end (typo??).<BR>\n" );
document.write( "So f(x) = 4*x -1 works most of the time.<BR>\n" );
document.write( "There is no easy way to get f(4)=13, it would have to be \"for x<4 ... for x>3 ...\" kind of deal.<BR>\n" );
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