Express the Interval in Set Builder Notation and Graph the Interval

question 63

Multiple Choice

Express the interval in set builder notation and graph the interval on a number line.
- $$( - \infty , - 8 )$$

• A) \(\{ x \mid x \leq - 8 \}\)
• B) \(\{ x \mid x < - 8 \}\)
• C) \(\{ x \mid x < - 8 \}\)
• D) \(\{ x \mid x \leq - 8 \}\)

---

Definitions:

Total Utility

The overall satisfaction or happiness received from consuming a certain amount of goods or services.

Marginal Utility

The extra pleasure or benefit obtained from consuming an additional unit of a product or service.

Total Utility

The total satisfaction or benefit that a consumer derives from consuming a certain quantity of goods and services.

Marginal Utility

The change in total satisfaction or pleasure derived from consuming one more unit of a good or service.