Which is true for the function (x) = x + x 1? a. f(x) has a root in (0, 1). b. f(x) has a root in (-1,0). O C. c. f(x) has a root in (-1,0) and (0, 1). O d. d. f(x) has a root in (1,2). e. f(x) has a no roots. cross out cross out cross out cross out cross out Let f(x) = = kx - 2 lim f(x) I3 x - 2x - 3 x - 3 lim f(x) = 3+ k for for for Compute the following (write DNE if the limit does not exist): x < 1/9 1/9 x 3 3 < x Choose a real number k so that f is continuous at x = 1/9.