Question: The following relationship between the traffic speed ( U ) and density ( K ) was obtained from observations on a freeway: ( U =

The following relationship between the traffic speed (U) and density (K) was obtained from observations on a freeway: (U=55-0.45K. Plot the relationships between U&K,Q&K and Q & U giving the equations for each. Note that Q(traffic flow) is in veh/hour,U is in mile/hour and K is in veh/mile.
The following relationship between the traffic

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