The formula E = 1000(100 - T) + 580(100 - T)2 is used to approximate the elevation (in meters) above sea level at which water boils at a temperature of T (in degrees Celsius). Find the rate of change of E with respect to T for a temperature of 71°C.
◦ -33,640 m/°C
◦ 34,640 m/°C
◦ -75,820 m/°C
◦ -34,640 m/°C