Help now calculus

The graph of the derivative of a function f is shown below. Answer the following questions about f. y = f'( x) -2 0 2 4 6 18 -2 (a) (4 points) On what intervals is f increasing/ decreasing? (b) (4 points) What are the critical points of f? (c) (3 points) For what values of a does f have a local maximum or minimum? Indicate which is which (d) (4 points) On what intervals is f concave up/concave down? (e) (3 points) For what values of a does f have an inflection point