29-36 Horizontal Shifts A trigonometric function is given. (a) Find the amplitude, period, and horizontal shift of the func- tion. (b) Sketch the graph. 29. y = 10 cos x 31. y = - sin x 33. y = 3 sin(2x-2) 30. y = 4 sin 2x 32. y = 2 sin x == 34. y = cos 2 x - TT 4 TT 2 TT TT 35. y = cos -x+ 36. y = 10 sin(2x - TT 2