\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
At 8:00 AM (\(t=0\) hours), the temperature in a room is 15°C. By noon (\(t=4\) hours), the temperature has risen to 25°C.
Calculate the average rate of change of temperature (in degrees Celsius per hour) during this time.
Average rate of change \(=\)
°C/hour