MAT135H1 Lecture : Rui

My family is planning a trip and we need to board our cool dog, Lucky. The kennel we have chosen has the following rates: the first three nights of the pet’s stay is $20/night and for subsequent nights after the first three the charge is $15/night. (a) How much will it cost if Lucky stays for the weekend (2 nights)? How much will it cost if we decide to stay a full week (7 nights)? (b) Write a function for the cost, C, as a function of the number of nights, t, a pet stays at the kennel for t ≥ 0.

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