The corporate jet cost $620000 new in 2004. By 2006, it had depreciated to a value of $570000. Write a linear equation for the value (V) of the plane in terms of the number of years (t) after its purchase (V = mt + b). (Do not use commas in your numbers) ? Use this equation to estimate the value of the plane in 2011. If the depreciated value is less than zero dollars, then the answer is zero.