Determine If the Graph of the Function Is Concave Up $f ( x ) = - 3 x ^ { 2 } - 3 x - 9$

question 13

Multiple Choice

Determine if the graph of the function is concave up or concave down
- $f ( x ) = - 3 x ^ { 2 } - 3 x - 9$

• A) Concave up
• B) Concave down

---

Definitions:

Aesthetic

Pertains to the nature of beauty, art, and taste and the creation and appreciation of beauty.

Kano Model

A theory for product development and customer satisfaction developed by Noriaki Kano, which classifies customer preferences into five categories: Must-Be, One-Dimensional, Attractive, Indifferent, and Reverse.

Excitement Factors

Elements or features of a product or service designed to stimulate interest, enthusiasm, or excitement among consumers.

Customer Satisfaction

An assessment of the degree to which a company's products or services exceed or fulfill the anticipations of its customers.