Answer:
equation : y = 8.35x - 16766.5
Explanation:
Given coordinates: (2010, 17.0) , (2008, 0.3)
To find slope: Â ( y2 - y1 ) / ( x2 - x1 )
           : ( 0.3 - 17 ) / ( 2008 - 2010 )
           :   -16.7 / -2
           :     8.35    .................this is the slope, m
using the formula: y - y1 = m ( x - x1 )  ............... to find equation
               : y - 17 = 8.35 ( x - 2010 )
               : y = 8.35x - 16766.5