The following table gives the average monthly exchange rate between the U.S. dollar and the euro for 2009. It shows that 1 euro was equivalent to 1.289 U.S. dollars in January 2009. Develop a trend line that could be used to predict the exchange rate for 2010. Use this model to predict the exchange rate for January 2010 and February 2010.

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MONTH EXCHANGE RATE January 1.289 February 1.324 March 1.321 April 1.317 May 1.280 June 1.254 July 1.230 August 1.240 September 1.287 October 1.298 November 1.283 December 1.311