Question: 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

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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