A thermometer reading 7 °C is brought into a room with a constant temperature of 34°C. If the thermometer reads 14 °C after 4 minutes, what will it read after being in the room for 6 minutes? For 11 minutes?
For this case we are going to define the following variable: x: time in minutes We write the linear function that represents the problem: t (x) = (14/4) x + 7 For x = 6 we have: t (6) = (14/4) * (6) + 7 t (6) = 28 ° C For x = 11 we have: t (11) = (14/4) * (11) + 7 t (11) = 45.5 ° C Answer: t (6) = 28 ° C t (11) = 45.5 ° C
