# Calculus: Other Calculus Problems – #28138

Question: According to the National Highway Traffic Administration, the fatality rate on the nation’s highways is a function of the driver’s age and can be modeled by

$F\left( t \right)=0.0038{{t}^{2}}-0.35t+8.3$

where F is the fatality rate per 100 million vehicle miles and t is the driver’s age.

(a) Find F ‘ (t).

(b) Find F’(25) and interpret your answer.

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