Work your problem on paper, showing all steps. Your solution should include: . Amplitude . Period . Vertical shift and direction (up or down) . Phase shift and direction (left or right) . Domain . Range . A graph of at least one period of the function with maximum, minimum, and midline points clearly labeled, either as points or on the axes Post the worked-out solution on the discussion board. To facilitate dialogue, please make your post by Friday at midnight. 20. f (t) = 4 cos (2 (t + " ) ) - 3