18. To save energy, an office building is only heated during business hours.Office Building TemperatureTemperature (°C)Timetimea) When is the temperature: (0,6) 6,0 20,24) Constant = (5,22)and2) Xi) Constant?ii) Decreasing(20)iii) Increasing? 2)81615,16681.S [3A]b) Calculate the rate of change during each time period from part a.PROCineraryresubmit

From given graph, For time = 0 to 6 i.e. for time interval = [0,6]Value of temparature (°C) is…

18. To save energy, an office building is only heated during business hours. Office Building Temperature Temperature (°C) time a) When is the temperature: Time 1.S [3A] 15 20 i) Constant? ii) Decreasing(20) iii) Increasing? 2) 8 68 (0₁6) and (20, 24) Constant = (5, 22) 1615,16 2) X b) Calculate the rate of change during each time period from part a. PROCinerary resubmit