00:01
This problem says the entire graph of the function f is shown in the figure below, and we want to write the domain and range of f as intervals or unions of intervals.
00:10
To start with the domain, that is the set of all of our input values, or our x values.
00:15
The first x value we see showing up on our graph is located at negative four, but it is at an open point, so that means we'll use parentheses to show that that number is not included, but that's where our domain starts.
00:25
Then we have x values being used from negative four to negative three, then we see a break.
00:31
So we'll show negative three is where we stop, and again, since this is an open point, we'll use parentheses again to show that negative three isn't included.
00:37
And then we have a break until we get to the x value of negative two being used again.
00:43
So union to show that the domain is continuing, and then starting at negative two, again, open point, so parentheses.
00:48
And we see x values being used all the way until the x value of positive two...