Given the graph of f(x) below, identify the following:
a. Intervals where f(x) is decreasing
b. Intervals where f(x) is concave down:
c. x-coordinate(s) where f(x) has critical point(s):
d. x-coordinate(s) where f(x) appears to have an inflection point:
e. Intervals where f"(x) is positive:
f. Intervals where f"(x) is positive: