Question

multiple-choice question
j ≥ 57
what type of circle do we need at 57?
open
closed (filled)
rewatch

Explanation:

In inequality notation, a closed (filled) circle is used when the endpoint is included in the solution set. The inequality \( j \geq 57 \) means 57 is included in the values of \( j \), so we use a closed circle at 57. An open circle is used when the endpoint is not included (e.g., for \( j > 57 \) or \( j < 57 \)).

Answer:

Closed (filled)