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a. On what interval(s) of x is f(x) positive?

b. On what interval(s) of x is f(x) negative?

c. On what interval(s) of x is f(x) increasing?

d. On what interval(s) of x is f(x) decreasing?

e. On what interval(s) of x does f have positive concavity?

f. On what interval(s) of x does f have negative concavity?

a. On what interval(s) of x is f(x) positive? b. On what interval(s) of x is f(x) negative? c. On what interval(s) of x is f(x) increasing? d. On what interval class=

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