Chinisa is swinging on a swing. Her maximum height above the ground is 7 feet and her minimum height above the ground is 1 foot. Select all of the equations that could model Chinisa's height above the ground (y) after x seconds of swinging assuming that the x-axis represents the ground.
A.
y = 6 sin(2x) + 4

B.
y = 6 cos(2x) + 4

C.
y = 6 tan(2x) + 4

D.
y = 3 sin(2x) + 4

E.
y = 3 cos(2x) + 4

F.
y = 3 tan(2x) + 4