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Small Koni sam

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A slow freight train chugs along a straight track. The distance it has traveled after x hours is given by a function f(x) An engineer is walking along the top of the box cars at the rate of 3 mi/hr in the same direction as the train is moving. The speed of the man relative to the ground is: a) f'(x) - 3 b) f(x) + 3 c) f(x) - 3 d) f'(x) + 3A slow freight train chugs along a straight track. The distance it has traveled after x hours is given by a function f(x) An engineer is walking along the top of the box cars at the rate of 3 mi/hr in the same direction as the train is moving. The speed of the man relative to the ground is: a) f'(x) - 3 b) f(x) + 3 c) f(x) - 3 d) f'(x) + 3A slow freight train chugs along a straight track. The distance it has traveled after x hours is given by a function f(x) An engineer is walking along the top of the box cars at the rate of 3 mi/hr in the same direction as the train is moving. The speed of the man relative to the ground is: a) f'(x) - 3 b) f(x) + 3 c) f(x) - 3 d) f'(x) + 3

Answer

Small Tutor Farzad Farzanegan

Ans: D. Remember that f'(x) is the speed of the train after x hours....