Question 6: Consider the function f(x) = %- It follows that f'(x) = E. (a) (3 points) Write the equation of the tangent line to the graph of for) at x = 4-. (b) (1 point} Does the graph of f(x) have any horizontal tangents? If yes, where? If no, why not? Question 7: Consider the function 90:) = x3 4x + 13. (a) {1 point} Find an expression for f'(x). (b) (2 points) What is the instantaneous rate of change of g(x) at x = 2? How are you getting your