In 2008, Marianna paid $14,500 for a used 2005 van. She has been tracking the selling price of the van as time has passed to decide how long to keep the van before replacing it. The data she has collected is shown in the following table: Age Question 1 (2 points) (in 3 4 5 7 years) Selling Price 14,500 11,600 8,700 6,800 4,300 3,500 (9 Determine the equation of the exponential regression function that models the depreciation of the van. (round values to the nearest hundredth)