Question

Which of the following inequality should be graphed with a dashed line? Select all that apply.

(I think B is one of the correct answers?)

Answer 1

B, D

Explanation:

Any inequality that does not include the "or equal to" case will be graphed with a dashed line.

Application

The "or equal to" case is included when the inequality symbol is one of ≤ or ≥. When symbols > or < are used, the boundary line of the solution space is dashed (or the end point on the number line is an open circle).

The inequalities that will be graphed with a dashed line are ...

• 2x -4y < 12 . . . . choice B
• x +7 > -1 . . . . . . .choice D