4 easy math questions please show work and make sure to write neatly please thank you dont over complicate

1} f(x) = 4x2 ax 2 a. Find the derivative of fx) using the limit definition of the derivative {You MUST use the limit definition of the derivative to receive credit\". b. Find the equation ofthe line tangent to f(x) at x=-2L. 2} Graph f{x] = 4 x2 and state the domain and range 3} What is the difference between the average rate of change and the instantaneous rate of change