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Write an explicit equation for the sequence graphed at right.  

The multiplier for this graph is 

Work backward to find term , or the starting value.

Use the starting value and the multiplier to write the equation.

A first quadrant coordinate plane with the x-axis labeled N, the y-axis labeled T of N. The discrete graph includes the points (2, comma 8), (3, comma 4), (4, comma 2).