Question: The change p (in lb/in. 2 ) in pressure in a certain fire hose, as a function of time (in min), is found to be

The change p (in lb/in.²) in pressure in a certain fire hose, as a function of time (in min), is found to be p = 2.3t² − 9.2t. Sketch the graph of p = f (t) for t < 5 min.

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