1. Draw at least one period of the graph of the sinusoidal function y = - cos ? (x - 3) + 1 by transforming the base graph y = cosx. 2. If a function has two successive maxima at , 4 and (1, 4) and a range of [-2, 4] , determine the equation of the graph that describes this function. 3. Describe how to transform the base sine graph to obtain the graph of y = -2sin(3x) +1, and describe the characteristics of the graph