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In (4+h)-in4 13. lim h-0 h (A) O (B) (C)1 (De (E) DNE 14. Let g be the function given by g(x) = xlehr, where k is a constant. For what value of k does g have a critical point at x = 9 (A)-3 (B) (0) 0 (E) The is no such k 15. Suppose f(2)= 3, f(4) = 1, f'(2) = -5, and f'(4) = 6. Find the equation of the tangent line of g(x), h(x), and p(x) at x = 2. a. g(x)=x/(x) c. p(x) = f (x2) 6.(x)-(x) X