Please solve so that I might double check my answers. Thank you!

y = f'(x) -12 -17 10 -9 -8 -7 6 5 -4 -3 -2 -19 2 3 4 5 6 7 8 9 10 11 12 13 4 15 1. On what open interval(s) is the function f (x) increasing? 2. On what open interval(s) is the function f (x) decreasing? 3. For which x value(s), if any, does the function f (x) have a relative maximum? 4. For which x value(s), if any, does the function f (x) have a relative minimum? 5. Recall that f "(x) is the derivative function of the given derivative graph. On what interval(s) is the function f(x) concave up? 6. On what interval(s) is the function f (x) concave down? 7. For which x value(s), if any, does the function f (x) have an inflection point