The temperature was changing at a rate of 2.925 degrees Celsius in 2005
From the graph (see attachment), we have the following ordered pair
(x,y) = (5,14.625)
The above means that, the temperature in 2005 is 14.625 degrees Celsius
So, the rate in 2005 is:
[tex]Rate = \frac{14.625}{5}[/tex]
[tex]Rate = 2.925[/tex]
Hence, the temperature was changing at a rate of 2.925 degrees Celsius in 2005
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