Calculus help

Match the functions with their graphs. Enter the letter of the graph below which corresponds to the function. ( Click on image for a larger view ) 1. y = -2 sin x 2. y = 1 - cos x 3. y = 4 - 2 cos x 4. y = 1 + sin x 67 23 1.8 1.6 1.43 1.2 0.8 W 0.6 0.4 0.2 3 5 6 2" 3 4 5" 2 3 4 5 A B C D