Round your answers to two digits. Part A Consider the following function f(x): f (x) = 27x+ 20x4 Find the first-order (linear) approximation of f(x) around xo = 2 and express it as f(x) ~ ax +b The coefficient a is equal to 189 The coefficient b is equal to 80 Part B Consider the following function f(x): f(x) = 43 In((x + 1)6 )+27e8x Find the first-order (linear) approximation of f(x) around xo = 0 and express it as f (x) ~ ax + b The coefficient a is equal to The coefficient b is equal to