5. Test the continuity of each of the following functions at x = 2. If a function is not continuous at x = 2, give a reason why it is not continuous. a. f (x) = x3 - x b. g ( x ) = x - x-2 x - 2 c. h(x) _ x- x-2 x - 2 , if x + 2 and h(2) = 3 d. F (x) =- 1 ( x - 2 ) 2 C(r) = 4 - , if x= 2 e. 3. if r = 2 (10 marks)