Determine all numbers at which the function is continuous . f(x)= x^ 2 -2x+2 x^ 2 -(x+2 &if x+2\\ 1 2 &if x=2 x ne2 x = 2 a continuous at every real number except x = 2 and x = 1 b . continuous at every real number except x = 4 continuous at every real number except x = 2 d. continuous at every real number except x = 4 and x = 2