# MATH PRE-ALGEBRA

posted by .

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 -

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 -

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 -

yes! if it is addition or subtraction you have an open dot! if it multiplication or division than a closed dot!

## Similar Questions

1. ### general math

here's an easy one for starters... what means greater or equal to on a number line, a closed dot or an open dot?
2. ### graphing

which of these is correct description of each inequality as it would be graphed on a number line. x 2 Closed dot on 2, arrow to the left Closed dot on 2, arrow to the right Open dot on 2, arrow to the left Open dot on 2, arrow to the …
3. ### math

Solve the compund inequality and graph the solution. -4<t+2<4 First I did t+2>-4 and I got t>-2 and I did t+2<4 and i got t<2. Then I graphed it and I dot an open dot on 2 and -2. Is this right?
4. ### math

Solve the compund inequality and graph the solution. -4<t+2<4 First I did t+2>-4 and I got t>-2 and I did t+2<4 and i got t<2. Then I graphed it and I dot an open dot on 2 and -2. Is this right?
5. ### Math - Vectors

If "u = (2,2,-1)", "v = (3,-1,0)" and "w = (1,7,8)", verify that "u (dot) (v + w) = u (dot) v + u (dot) w". My work: LHS: u (dot) (v + w) = (2,2,-1) (dot) (4,6,8) = [(2,2,-1) (dot) (3,-1,0)] + [(2,2,-1) (dot) (1,7,8)] = [u (dot) v] …
6. ### Math

For inequality number lines would a less than or = to sign mean that that it would be a closed dot or open dot?
7. ### Calculus

Could someone help me with this question. Determine what limit would be represented by the following graph. imgur dot com/bceWN I am not sure if it has open dot or closed but what would the equation be for open and closed dot?
8. ### 6th G-Math

1.Which of the following best describes the graph of x > 2 ?
9. ### Math

Graph the inequality:x</=-2 A. <-6,-4,-2,0,2,4,6> The dot is on the -2 going to 6 and it's a filled dot. B. <-6,-4,-2,0,2,4,6> The dot is on the -2 going to -6 and its a filled dot. C. <-6,-4,-2,0,2,4,6> The dot …
10. ### math

Graph the inequality:x</=-2 A. <-6,-4,-2,0,2,4,6> The dot is on the -2 going to 6 and it's a filled dot. B. <-6,-4,-2,0,2,4,6> The dot is on the -2 going to -6 and its a filled dot. C. <-6,-4,-2,0,2,4,6> The dot …

More Similar Questions