A thermometer reading 6C is brought into a room with a constant temperature of 33C. (a) If the thermometer reads 15C after 2 minutes, what will it read after being in the room for 4 minutes? For 9 minutes? (b) Graph the relation between temperature and time. Use TRACE to verify that your answers are correct. (a) After 4 minutes, the thermometer will read approximately C. (Round to the nearest hundredth as needed.)