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Question: The toll T charged for driving on


The toll T charged for driving on a certain stretch of a toll road is $5 except during rush hours (between 7 am and 10 am and between 4 pm and 7 pm) when the toll is $7.
a. Sketch a graph of T as a function of the time t, measured in hours past midnight.
b. Discuss the discontinuities of this function and their significance to someone who uses the road.

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