Directions: Show the appropriate work for each question for full credit. No credit for answer only. 1. [5] Find the derivatives for the given functions. Simplify as much as possible. a) y = -In (1- 4x2) b ) f(x) = -4.V10x3 - 7x2 +e b ) g (x ) = (3x3 - 7)3 In (5x4 + 1) 2. [2] Find f' (x) and find the values of x where the tangent line is horizontal. f (x) = X (6x-7)9 3. [2] Let f(x) = -3ex-9x+5. Find the equation of the line tangent to the graph of f (x) at x = 1. Leave answer in exact form