In Exercises 36-45, find all numbers at which f is not continuous for the given functions. Answers for Exercises 34-40 must be written in interval notation. x+5 36. g (x) = x +6x+ 8 3 2 X 37. / (x) = + x+4 2x -3 38. / (x) = X x - x' 39. / (x) = vx + 10 X 40. /(x)= 2x TV:+4