The table gives the number of visitors in thousands to a museum for each month.
Jan: 10, Feb: 8, Mar: 11, Apr: 15, May: 24, Jun: 30, Jul: 32, Aug 29
Write a trigonometric function that models the monthly attendance at the museum using x=1 to represent January.

Question

The table gives the number of visitors in thousands to a museum for each month. 
Jan: 10, Feb: 8, Mar: 11, Apr: 15, May: 24, Jun: 30, Jul: 32, Aug 29
Write a trigonometric function that models the monthly attendance at the museum using x=1 to represent January.

anonymous · Answer

|dw:1378561660889:dw| I have already figured out all the values except for c in the equation. Please explain how to find the phase shift? I know that the amplitude is 12, the vertical shift is 20 and the period is 10 making b pi/10. Will give medal to whoever can help!