Consider the graph of f(x) and it's tangent line at x= 11. f(2)=2. f'(2)=3. f'(3)=4. f''(2)=5. What is the sign of f at x=0, positive or negative ? 6. What is the sign of f'(x) at x=1, positive or negative ? 7. What is the sign of f''(x) at x=3, positive or negative ?

6 Ay y=f( x) 5 -4 -3 -2 -1 1 3 4