00:01
All right, so for this next one, i'm going to put zero about here, and i'm going to have another scale of one with space so that i can show the halves.
00:15
So 1, 2, 3, 4, and negative 1.
00:21
And the inequality they gave us, i've already put into our set notation answer, which is the solution set with z such that 1ā2, one half is less than z, which is less than or equal to three.
00:37
And this is the first time of these problems where we have less than and less than or equal to, which means we're going to have one closed boundary and one open boundary.
00:49
Let's put the color and graph are important boundaries.
00:53
So we want a boundary at one half.
00:56
That's right here in between zero and one.
00:59
And at three right here.
01:01
And the one at one half is an open circle because we don't include that in the solution set.
01:08
It's just the boundary.
01:10
Three is included.
01:12
And so i'm going to close that circle so that we can see that it's not only a boundary, but it's also part of the solution...