What is the slope for the linear function modeling velocity as a function of time, V=,  and what would the formula be for the velocity at time 0, V(0)

Physics for Scientists and Engineers: Foundations and Connections
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ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
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An engineer is testing how quickly a car accelerates from rest. The velocity V is measured in miles per hour, as a function of time t, in seconds, since the car is at rest. See the table below. What is the slope for the linear function modeling velocity as a function of time, V=,  and what would the formula be for the velocity at time 0, V(0)

Time (t) Velocity (V)
2.0 28.9
2.5 35.0
3.0 41.1
3.5 47.2
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