math
posted by scooby9132002 on .
Describe what the graph of interval
[4,10] looks like?
what does the brackets mean?

It is supposed to mean between 4 and 10, but I never remember if the end points are included in this notation.
I never used that notation, I use something like
4 ≤ x ≤ 10 or 4 < x < 10
So it means that you are only concerned about the graph that falls within those two values of x .
Clarify from your text or your instructor whether the endpoints are included or exclude. 
[4,10] means 4<=x<=10
The square brackets mean that the limites are included in the interval.
If a limit is to be excluded, use the parentheis or turn the brackets backwards.
(4,10] means 4 < x <=10.
]4,10] also means 4 < x <=10
See:
http://en.wikipedia.org/wiki/Interval_(mathematics)