The torque (in ft-lb)producedby a certainautomobileengine turning at x thousand revolutions per minute is shown in the table. Graph the points and then find a third-degree polynomial function to model the torque T(x) for lsxs 5. Engine speed (1000 гpm) Torque (ft-lb) 1.0 165 1.5 180 2.0 188 2.5 190 3.0 186 3.5 176 4.0 161 4.5 142 5.0 120

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