If the graph of f(x) = ax3 + bx2 + cx + d has a local maximum at (0, 8) and a local minimum at (2, 4) , compute the value of f(1)
1. f(1) = 6
2. f(1) = 3
3. f(1) = 2
4. f(1) = 5
5. f(1) = 4