Part 2: The derivative function Use the definition of the derivative to compute the derivative of the function f (a) = - at an arbitrary point . Evaluate the limit by using algebra to simplify the difference quotient (in first answer box) and then evaluating the limit (in the second answer box). f' (x) = lim f(x + h) - f(x) lim h 0 h h-0 Part 3. The tangent ling