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Question : 38
Total: 38
The use of electric vehicles will curb air pollution in the long run. t is given by the function V :
V ( t ) =
t 3 −
t 2 + 25 t − 2
wheret represents the time and t = 1 , 2 , 3 . . . corresponds to year 2001, 2002, 2003, respectively.
Based on the above information, answer the following questions :
(i) Can the above function be used to estimate number of vehicles in the year 2000 ? Justify.
(ii) Prove that the functionV ( t ) is an increasing function.
The use of electric vehicles is increasing every year and estimated electric vehicles in use at any time
where
Based on the above information, answer the following questions :
(i) Can the above function be used to estimate number of vehicles in the year 2000 ? Justify.
(ii) Prove that the function
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