Question

Which is a valid prediction about the continuous function f(x)?
a. f(x) ≥ 0 over the interval [5, [infinity]).
b. f(x) ≤ 0 over the interval [–1, [infinity]).
c. f(x) > 0 over the interval (–[infinity], 1).
d. f(x) < 0 over the interval (–[infinity]. –1)