00:03
All right, so we're trying to figure out the domain.
00:07
And just as a reminder, domain are the possible input values.
00:24
Or, in other words, are possible x's.
00:28
So the way i kind of think of this is i want to scan left to right, which values are included.
00:35
So if i look here, it looks like i have x's between negative 3 and 5.
00:46
Because there are no breaks in between.
00:48
Now, to write this in interval notation, we have to decide are our endpoints included or not.
00:54
Well, we have a closed circle over here on the left hand side.
01:00
That means it's included.
01:02
We have an open circle over here, which means it's not included.
01:07
So our domain then would be, if we include a value, we use a square bracket.
01:16
So it's going to be negative three, comma until 5 not included, which means it's a parentheses...