Asked by Jack Hoff
Im stuck on this question. A train travels along a straight track so that its distance in miles, d(t) , from Newark Penn Station is given as a function of time, t , in minutes. After 2 minutes the train has traveled 6 miles, and after 5 minutes the train has traveled 12 miles. Which of the following describes the slope of the relationship between t and d(t) ?
Answers
Answered by
oobleck
slope = ∆d/∆t = (12-6)/(5-2) = ___
Answered by
Anonymous
speed during first 2 min = 6/2 = 3 miles/minute (no way by the way)
during next 3 min it does 6 miles again = 6/3 = 2 miles/min
It is slowing down. That is no surprise because 3 miles / min = 180 miles/hour which is a bit nuts just coming out of the station. Anyway negative slope.
during next 3 min it does 6 miles again = 6/3 = 2 miles/min
It is slowing down. That is no surprise because 3 miles / min = 180 miles/hour which is a bit nuts just coming out of the station. Anyway negative slope.
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