<PRE><B>Question 78140</B>
YEAR | SPENDING
______|____________
2000 | 2.1
2001 | 2.2
2002 | 2.5
2003 | 2.8
2004 | 3.1 
(A) LET X = 0 CORRESPOND TO 2000. USE (0, 2.1) AS THE VERTEX AND THE DATA FROM 2004 TO FIND THE QUADRATIC FUNCTION g (x) = a( x-h)2 (**note: the 2 here is an exponent 2)+ k that models this data.
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Using the Quadratic Ression program on a TI calculator I get
this quadratic equation: spending = 0.0285714286(year)^2+0.1457142857(year)+
2.077142857
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(B) USE THE MODEL TO ESTIMATE ADVERTISER&#39;S SPENDING IN 2006 AND 2008
The spending in 2006 is 3.98
The spending in 2008 is 5.0714
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Cheers,
Stan H. 
</PRE>