In this problem, use the Add Work box to show/explain your reasoning. Below is the graph of a function y = f(x). 10- 6 4 -3 -2 -2- -8 10 12 For each value, determine the sign (positive, negative or zero): f'(3) is Select an answer v f'(2) is Select an answer v f'(-1) is Select an answer v f'(1) is Select an answer v Add Work