document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=426296>Question 426296</A>: <I><SPAN STYLE=\"word-break: break-all;\"> which kind of function best models the data in each table? choose an equation to model the data.<BR>\n" );
document.write( "x/y<BR>\n" );
document.write( "-1/2.2<BR>\n" );
document.write( "0/0<BR>\n" );
document.write( "1/2.2<BR>\n" );
document.write( "2/8.8<BR>\n" );
document.write( "3/19.8<BR>\n" );
document.write( "possible answers:<BR>\n" );
document.write( "linear y=2.2x<BR>\n" );
document.write( "quadratic y=2.2x^2<BR>\n" );
document.write( "exponential y=2.2^x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #296572 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=296572\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "This function is symmetric about the y-axis.  -1 gets you to the same function value as 1.\r<BR>\n" );
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document.write( "No exponential equation is symmetric to the y-axis, and only a purely horizontal line would be symmetric to the y-axis.  The model must be a quadratic.\r<BR>\n" );
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document.write( "Check:  Square -1 to get 1 times 2.2 is 2.2\r<BR>\n" );
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document.write( "Square 0 to get 0 times 2.2 is 0\r<BR>\n" );
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document.write( "Square 1 to get 1 times 2.2 is 2.2\r<BR>\n" );
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document.write( "Square 2 to get 4 times 2.2 is 8.8\r<BR>\n" );
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document.write( "and so on.\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi} + 1 = 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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