Question 431000: What type of line should be used when graphing 2x-3y is less than or equal to 6. Found 2 solutions by solver91311, ewatrrr:Answer by solver91311(24713) (Show Source):
Since it is less than OR equal () use a SOLID boundary line. The reason being that "or equal" means that points on the line ARE a part of the solution set. Without the "or equal", points on the boundary line would NOT be part of the solution set and you must then use a dashed line to graph it.
John
My calculator said it, I believe it, that settles it