HELP number line PLEASE READ I NEED HELP!?

Question

OK so this is my quistion, Which number line is the graph of x > -2? IV been stuck on this ? all night!
a) a dot thats black followed by a line so .--------->
sorta like that than under that it has <------------------->
-3 -2 -1 0 1 x
b) a dot that isnt fully black folowed by a line so this line is slitly biger
.--------------->
<--------------------->
-3 -2 -1 0 1 x

c) This dot is fully black <-------.
<------------------->
-3 -2 -1 0 1 x

d) this line has to full black dots so .-------.
<-------------------->
-3 -2 -1 0 1 x

Any anserws or help wil b gr8

Answer 1

You want to show GREATER THAN, not EQUAL TO OR GREATER THAN, so the dot must not be solid. It must be an open circle to show that the number it is next to is not part of the solution set.
OK, so put the open circle against -2, because that is the boundry between solution/not a solution.
Then draw your line in the positive direction (the direction toward higher number values) normally to the right.
End the line with an arrowhead to show there is no upper limit on the answer.

I think your description of "b" matches what I described.

Answer 2

I can't read your post well enough to know if it's a, b, c, or d, but maybe this will help.

There are two kinds of dots used as endpoints - open circles, indicating that the endpoint is not included in the set, and filled circles, indicating that it is. Your problem: x > -2 would have an open circle. If it were x >= -2, it would have a filled in circle.

Now: You're trying to indicate all of the numbers that are larger than -2. This would be the numbers on the right side of -2. So the answer should have an open circle on -2 and the arrow pointing to the right.

Hope that helps.

Answer 3

x can be -1, 0, 1, 2, 3, 4, 5, 6, ... etc.