3. The graph of y = f(x) is shown Analyse the graph to y determine, where applicable, intervals of increase and -V3 decrease, local extrema, points of inflection, intervals of concavity and type of function. Draw a graph of y - f'(x) (-1.8) (1.8) 4. Determine the derivative of the function f (x) = x - 12x- Now determine the derivative of the function g(x) = x - 12x2 + 6. How are the two functions related? How are the derivatives of the two functions related? Rubric