00:03
Okay, so in this problem, we're told to find the domain and the range.
00:08
Okay, so the domain is all the inputs and the range is all the outputs, or we can look at it as the domain is all the x's, all the x values, which is going to be all the left to right values that we can take.
00:19
And then the range is all the y values, and that's going to be all the up and down values that our function can take.
00:27
All right, so we're going to have to look at the picture.
00:29
We're going to look at the picture and say, okay, how far left and right? does it go right our graph kind of looks something like that right it looks a little bit like this so we're going to say from left to right it's going to be from here to here right and then up and down it's going to be from here to here right where's the highest and lowest that it goes and what's the farthest to the left and to the right it goes so let's look at our picture right here what's the farthest left it goes it looks like it goes from negative one all the way over to two all right so we know that it's going from negative one to two and now we say okay it looks like it's including negative 1 because that's a filled in dot.
01:04
So we're going to put a bracket right there.
01:06
And then there's an open dot right there on the 2...