a. Write the equation of the line that represents the linear approximation to the following functions at the given point a. b. Graph the function and the linear approximation at a. c. Use the linear approximation to estimate the given function value. d. Compute the percent error in your approximation, 100. |approx - exact) / jexact], where the exact value is given by a calculator. f(x) = 4 e at a= 0; f(0.04) a. L(x) = b. Choose the correct graph below. O A. O B. O C. OD. c. Using the linear approximation, f(0.04) ~ . (Type an integer or a decimal.) d. The percent error is%. (Round to four decimal places as needed.)