The list of ordered pairs below represents a function: (12,6),(3,1),(2,-2),(5,10),(-8,4),( _,_). Which of the following could be the missing ordered pair? a (2,1)
b (12,7)
c (-8,8)
d (-3,-4)

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?