i need help with those plz

15. Identify the amplitude and period for each of the equations: 1) y = 2 cos(3.r) 2) y = $ sin(5) 16. Identify the vertical and horizontal translations for each of the equations: (1) y = sin(2a: + 7) - 3 (2) y - cos(2: - 1) + 2 17. For the equation y = 3 cos(2x - 7) + 2, 1) Identify the amplitude, period, vertical and horizontal shifts. 2) Graph one complete cycle. Be sure to label the axes so that the amplitude, period, vertical and horizontal shifts are easy to road