Question 717669: Verbal and writing Skills, Exercises. Explain when to use a solid line as a boundary when graphing a linear inequality. Answer by solver91311(24713) (Show Source):
Use a solid line as a boundary line when the inequality is inclusive of equals. This indicates that the points on the boundary line are included in the solution set of the inequality.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it