Which of the following solutions are written in set notation? Select ALL that apply. (2 poi

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}