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When you're given this interval notation, from negative 12 to infinity, especially if this is the first time you're learning this, it's good to go to a number line and just identify where negative 12 is.
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1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12.
00:19
And notice that the bracket in this problem is saying, okay, well, then we need a closed dot.
00:27
Write that down.
00:31
And then the infinity is telling you which direction that you're going in.
00:34
You're going infinitely to the right.
00:37
So when you go to write this answer, you don't even need the number line.
00:41
You can piece it all together, especially if you're familiar with the statement like x...