Sketch a picture of a graph that is defined on 0, 8 and that satisfies the following: . f' (a) is positive on (0, 2) and (6, 8) . f' (2) is negative on (2, 6) . f" (x) is positive on (4, 8) . f" (z) is negative on (0, 4) Use a grid or label the coordinates of important points. Please select file(s) Select file(s)