It usually means that the line ends there but does not include that point.
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If the inequality includes 'or equal' then use a solid dot [the value is included]. If it doesn't use 'or equal' then use the open dot.
The dot is open, if it is less than or equal to than the dot is closed
A parabola can open left, down, right, or left on a graph, if that's what you mean:\
Well, honey, if the inequality is strictly greater than, like ">", then it's an open dot because that endpoint ain't included in the solution. But if it's greater than or equal to, like ">=", then you better believe it's a closed dot because that endpoint is part of the party. Hope that clears things up for ya!
use a line graph. Place a solid dot at 4. Shade the entire region to the left of 4.x is Less than shade Left.* * * * * The above answer is so very wrong - it has missed out the key word "absolute".Use a line graph. Put a solid dot at -4 and another solid dot at +4 and join them. Every point on the line (including the two end points) is the graph.