Use a Graphing Calculator to Approximate the Real Zeros $$f ( x ) = x ^ { 3 } + 3 x ^ { 2 } - 3 x - 9$$

question 453

Multiple Choice

Use a graphing calculator to approximate the real zeros. Give each zero as a decimal to the nearest tenth.
- $$f ( x ) = x ^ { 3 } + 3 x ^ { 2 } - 3 x - 9$$

• A) \(3,1.7 , - 1.7\)
• B) \(3,1.6 , - 1.6\)
• C) \(- 3,1.8 , - 1.8\)
• D) \(- 3,1.7 , - 1.7\)

---

Definitions:

Microsystem

The immediate environments in which individuals interact, such as family, school, and peer groups, within the ecological systems theory.

Social Environment

The immediate physical and social setting in which people live or in which something happens or develops.

Media

Forms of mass communication, including newspapers, magazines, books, comic books, radio, television, films, video games, and the Internet.

School

An institution designed for the teaching of students under the direction of teachers, varying greatly in the levels of education provided.