Question

Which of the following sets would have a graph with an open circle on 4 and a ray pointing left on the number line? x ∈ R, x ≤ 4 x ∈ R, x ≥ 4 x ∈ R, x < 4 x ∈ R, x > 4

Answer 1

x ∈ R, x < 4

Explanation:

The open circle means the inequality does not contain the "or equal to" case. The ray point left indicates numbers less than 4, so the appropriate choice is the one shown above.