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Question 13
Question Help: Video Message instructor Post to forum using interval notation.
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When expressing the solution for in interval notation, you’re saying that can take on any value from negative infinity up to and including 0. This would look like . It’s a concise way to communicate all the numbers that satisfy this inequality.

Now, keep in mind that the brackets in interval notation have special meanings! A parenthesis, like in (-∞, 0), indicates that the endpoint is not included, whereas a bracket, as in [0], means that the number is part of the set. Since we want to include 0 in this case, we use a bracket next to it. So, combine them for the final answer!