Question

One interval is given in interval notion, another in set builder notion. Match the equivalent intervals.

(-∞, ∞)

[3,∞)

(3,∞)

(-∞,3)

Answer 1

(-∞,3) --> (-∞, ∞)

[3,∞) --> [3,∞)

(3,∞) --> (3,∞)