How do you know when to put an open or closed circle when graphing inequalities?

Question

asked Dec 21, 2015 125k views

1 Answer

Legeo · Answer 1 · 2015-12-26T14:49:36+0000

An open circle means not equal to. So, if your equation is x < 4, You would put an OPEN circle at four because it can't equal four.