PLEASE ANSWER FAST! What does it mean when the point on the number line is an open circle?

Mathematics

2 answers:

Zarrin [17]2 years ago

7 0

Answer:

When graphing a linear inequality on a number line, use an open circle for "less than" or "greater than", and a closed circle for "less than or equal to" or "greater than or equal to".

Step-by-step explanation:

Stolb23 [73]2 years ago

5 0

Answer:

See explanation for answer.

Step-by-step explanation:

When the point on the number line is an open circle, that means that the inequality does not include that exact value. For instance, in this case the inequality only takes number higher than, but not equal to, -1. Hope this helps!

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What is the value of a?

dexar [7]

Answer:

a= 2x <u><em>(edit: i just forgot it should be a integer x.x, forgive my blondiness)</em></u>

Step-by-step explanation:

usually when doing equations like that, you can separate one of the parenthesis with 0

(in this case, we will use (2x-a) )

Then create a equation, which should look like:

2x-a=0

Then solve for a

$(-2x)2x-a=0(-2x)\\(-1)-a=-2x (-1) \\a=2x$