The value V of an item t years after it is purchased is V = 9000e -0.6t
Question:
The value V of an item t years after it is purchased is V = 9000e-0.6t for 0 ≤ t ≤ 5.
(a) Use a graphing utility to graph the function.
(b) Find the rates of change of V with respect to t when t = 1 and t = 4.
(c) Use a graphing utility to graph the tangent lines to the
function when t = 1 and t = 4.
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