WeBWork 3 - Topics 6 - 7: Problem 12 (1 point) Evaluate the limit, using L'Hopital's Rule. Enter INF for oo, -INF for -oo, or DNE if the limit does not exist, but is neither co nor -co. lim (1 + 3x) 3x -+0+ Preview My Answers Submit AnswersWeBWork 3 - Topics 6 - 7: Problem 13 (1 point) If a function f(x) is continuous on [a, b] and differentiable on (a, b), then the Mean Value Theorem says that there is at least one number c in the interval (a, b) such that f'(c) = (One) . Find all possible value(s) for c given f(x) = x - 7x + 2, -3