1 Find a formula for the trigonometric function graphed belo

1. Find a formula for the trigonometric function graphed below. Use x as the independent variable in your formula.

comparing with y =Acos(Bx +C) +D

mid line y =5

amplitude A=5

period 2_/B=7+7

B=2_/14

B=_/7

vertical shift D =5

horizontal shift -C/B =-7/2

C=7B_/2

C=7(_/7)_/2

C=_/2

y =5cos((_/7)x +(_/2)) +5 is equation of graph