document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=778526>Question 778526</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 4)	Model the following data with a cubic polynomial, y=f(x). Give coefficients correct to 3 decimal places, and the value of  r2\r<BR>\n" );
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document.write( "X 		4		          8		         12		         20		         30<BR>\n" );
document.write( "Y		13.59		12.36		9.912		9.048		35.34\r<BR>\n" );
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document.write( "Hence, find (a) F (0)   &   b)  F(25) &  (c) The value of X so that  F(x) = 10   & (d) any local maximum or minima.<BR>\n" );
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