Question

Write an inequality that represents the graph.

A) k ≥ 1
B) k≤1
c) k = 1
D) k> -1

Answer 1

Answer: Choice B

Writing k ≤ 1 means "either k = 1, or k < 1"

The closed filled in endpoint at 1 shows us that it is part of the solution set. You would use an open hole if you had k < 1 without the "or equal to".