2. Sketch a function f() with the following properties: . f'(x) 0 and f"(x) > 2 3. Sketch a function f(x) with the following properties: . f'(z) > 0 for all z. . f"(x) > 0 for all r. 4. Sketch a function f(x) with the following properties: . f(2) = 3. . f' (2) is undefined. . f'(x)