PLZ HELP!!

A function is increasing and the limit as x -> co is 6. Macmillan Learning Identify the functions that satisfy the given condition. Select all that apply. f ( x) = 6 - Vx Of ( x) = -x3 +6 f ( x ) = 6+ 1 Vx 42x3 - f (x) = on (0, co) 7x3 f ( x ) = 42x3 + 1 on (0, co) 7x3 Of ( x) = x2+6