Can i ask for an assistance to answer these? Thanks.

19 If f is a function such that lim / (x)-/(2) =0, which of the following must be true? Of is not defined at x=2 Of(2)=0 The derivative of f at x=2 is 0. The limit of f(x) as x approaches 2 does not exist. 10 Which of the following functions are NOT everywhere continuous? * . None of the above Of ( x) = H-4 Of ( x) = (x+3)+ Of ( x ) = mx + b 11 From the given, which of the following statements is TRUE? * x2 f ( x) = 1 6x - 9, x23 atx = 3 x