Question

Which of the following solutions are written in set notation? Select ALL that apply. (2 poi
{x=8}
{8}
56
• {-45}

Answer 1

To determine which of the provided options are written in set notation, we need to identify which entries represent sets, typically denoted by curly braces {} and containing elements.

Let’s analyze each option:

1. **{x=8}**: This is not a standard form of set notation for a set of elements; it looks like an equation rather than a set of values. Therefore, it does not qualify as set notation.

2. **{8}**: This is correct set notation. It represents a set containing a single element, the number 8.

3. **56**: This is just a number and does not represent a set. Therefore, it is not in set notation.

4. **{-45}**: This is also correct set notation. It represents a set containing a single element, -45.

Based on the analysis, the options written in set notation are:

- **{8}**
- **{-45}**