Given: f (x) = x2-2x+1 f' (x) = x-+8x-9 50 x+4 (x+4)2 & f" ( x ) = (x+4)3, determine (if applicable):iii) The intervals of increase and decrease & maximum and minimum values. [4 Marks] iv) The intervals of concavity & point(s) of inflection [3 Marks] v) Sketch the curve on the graph provided: [2 Marks]