2. (10 points) Assume that constants a and b are positive. Find equations for all horizontal and vertical asymptotes for the graph of y = Vax + 4 x - b 3. (10 points) For what values of a and b will ax, f(I) = ax 2 - bx + 3, x> 2 be differentiable for all values of x? 4. Consider the function x sin if x 0 f(x ) = 0 , if x = 0. a. (3 points) Show that f is continuous at a = 0. b. (3 points) Show that f is differentiable at I = 0. c. (4 points) Is f'(r) continuous at a = 0