The graph represents the number of hours that Walter sleeps in terms of the number of days. Which function represents Walter’s situation?

A.
y = 6x
B.
y = 6
C.
y = 8
D.
y = 8x

Aresearcher believes increased perceived control influence the well-being of residents at a nursing home. to test this , she allowed one group of residents to have control over their daily lies, (where to eat etc) . the other group of 5 residents had these deceisions made by staff. the resident's feelings of well-being were measured on a 10 point scale at the end of a one month trial period. is there a difference on well-being?