Posted by **MATH DUDE** on Monday, January 3, 2011 at 10:06pm.

Explain how to know wheather the endpoint of the graph of an inequality should be a closed dot or an open dot.

- MATH PRE-ALGEBRA -
**Jen**, Monday, January 3, 2011 at 10:16pm
It should be an open dot because it's an inequality. It would be a closed dot if it was an equality, such as x=3.

- MATH PRE-ALGEBRA -
**Reiny**, Monday, January 3, 2011 at 10:26pm
If the inequality contains either ≤ or ≥, then close the dot of the endpoint, since that point is included in the graph.

If the inequality contains eitehr < or > , then leave the dot open to show that the endpoint itself is not included in your graph.

- MATH PRE-ALGEBRA -
**kim**, Tuesday, September 20, 2011 at 5:32pm
yes! if it is addition or subtraction you have an open dot! if it multiplication or division than a closed dot!

## Answer This Question

## Related Questions

- general math - here's an easy one for starters... what means greater or equal to...
- Calculus - Could someone help me with this question. Determine what limit would ...
- graphing - which of these is correct description of each inequality as it would ...
- 6th G-Math - 1.Which of the following best describes the graph of x > 2 ? A. ...
- Math - For inequality number lines would a less than or = to sign mean that that...
- Math - Vectors - If "u = (2,2,-1)", "v = (3,-1,0)" and "w = (1,7,8)", verify ...
- math - Solve the compund inequality and graph the solution. -4<t+2<4 First...
- math - Solve the compund inequality and graph the solution. -4<t+2<4 First...
- math - Graph the inequality:x</=-2 A. <-6,-4,-2,0,2,4,6> The dot is on ...
- Math - Graph the inequality:x</=-2 A. <-6,-4,-2,0,2,4,6> The dot is on...

More Related Questions