1. The sinusoidal function at) = 3sinf30ft 4)]+2 models the height, Aft) in metres, of the tide in a particular location on a particular day at r hours after midnight. a) Graph h(t) using technology or by hand. b) Determine the maximum and minimum heights of the tide. c) At what times do high tide and low tide occur? d) What is the depth of the water at 9:00 a.m.? e) If the graph of h(t) were modelled with a cosine function instead of a sine function, what would the equation be? Explain your reasoning