please solve these 3 questions step by step and explain every step with details

appreciate

1. Show a numerical method of approximationg the instantaneous rate of change at x = 3 for the function f(x) = -x2 + 4x + 1 using secants. Show two numerical approximations. 2. Show a graphical method of approximationg the instantaneous rate of change at x = 3 for the function f(x) = -x2 + 4x + 1 using secants. Show two graphical approximations. 3. What is the average rate of change between x and x + h for the function f(x) = 2x+4 Show your X simplification