Stat 208

1. The graph of a function /(a) is shown below. (a) At which values of a is f discontinuous? Which of these discontinuities are removable? Which are jump discontinuities? (b) Determine the limit at each removable discontinuity. (c) Determine the left and right limits at each jump discontinuity. 3 2 T 43. Let f(x) = 2x2 + 1. (a) Express f'(3) as the limit of the difference quotient, as in the definition of the derivative. (b) Evaluate the limit in part (a)