Question 8, 3.1.37 HW Score: 0%, 0 of 10 points Part 1 of 2 Points: 0 of 1 Save a. For the function and point below, find f'(a). b. Determine an equation of the line tangent to the graph of fat (a,f(a)) for the given value of a. f(x) = , a= a. f'(a) =Question 9, 3.1.39 HW Score: 0%, 0 of 10 points Save Part 1 of 2 Points: 0 of 1 a. For the following function, find f'(a). b. Determine an equation of the line tangent to the graph of f at (a, f(a)) for the given value of a. f(x) = 3x +4, a =4 a. f'(a) = (Simplify your answer.)Question 10, 3.1.41 HW Score: 0%, 0 of 10 points O Points: 0 of 1 Save Part 1 of 2 a. For the following function, find f'(a). b. Determine an equation of the line tangent to the graph of f at (a,f(a)) for the given value of a. 5 f(x) = 2x+5. a=2 a. f'(a) = (Simplify your answer.)