COMPLEX QUESTION Chapter 8 review cambridge The graph below shows length of night on Seal island which varies between 20 hours in midwinter and 4 hours in midsummer. T (hours) 20 Tech Active 4 O 6 12 /(months) The relationship between 7, the number of hours of night, and t, the number of months past the longest night in 2010, is given by? T (t ) = p + qcos(art) where p, q, and r are constants. After how many months is the rate of change of hours of night a maximum