A pizza baked at 400°F is removed from the oven at 4:00 PM into a room that is a constant 75°F. After 5 minutes, the pizza is at 300°F. (a) At what time can you begin eating the pizza if you want its temperature to be 135°F? (b) Using a graphing utility, graph the relation between temperature and time. (c) Using INTERSECT, determine the time that needs to elapse before the pizza is 170°F. (d) TRACE the function for large values of time. What do you notice about y, the temperature? (a) The temperature of the pizza is 135°F at about PM.

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