Can someone help me out with this quick problem. I know that f(x) is 1/2 - actually i'm not even sure so I don't even know where to begin on this one.
Here is the image: http://i.imgur.com/MZ0agRD.png

Question

Can someone help me out with this quick problem. I know that f(x) is 1/2 - actually i'm not even sure so I don't even know where to begin on this one. 
Here is the image: http://i.imgur.com/MZ0agRD.png

anonymous · Answer

I feel like it would be either the first or the second option because of the 1

triciaal · Answer

the domain is the set of x values

anonymous · Answer

So -3 and 1?

triciaal · Answer

open circle does not include the end point 
closed circle/ shaded includes the end point

anonymous · Answer

So the x values (domain) would include: -3, -1, 1 etc.?

triciaal · Answer

domain    all the values of x that will produce a y value

triciaal · Answer

yes

triciaal · Answer

open  does not include

anonymous · Answer

I'm really confused now. Because the circle is open, do I disregard that -3 then?

triciaal · Answer

-3 will be the end point
open does not include
therefore the x is greater than -3

anonymous · Answer

So because its open, X always will be greater and not greater than or equal to?

triciaal · Answer

correct

anonymous · Answer

Yay! Alright thank you and have a good night (:

anonymous · Answer

Wait a sec

anonymous · Answer

If the circle on -3 was closed would that mean that X would equal less than -3?

anonymous · Answer

Or less than or equal to

triciaal · Answer

by the same principle you would include 1 because shaded

anonymous · Answer

So less than or equal to? Right?

triciaal · Answer

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