Use the Zero or Root Feature of a Graphing Utility $f ( x ) = 2 x ^ { 3 } + 8 x ^ { 2 } - 5 x - 7$

question 24

Multiple Choice

Use the zero or root feature of a graphing utility to approximate the zeros of
$f ( x ) = 2 x ^ { 3 } + 8 x ^ { 2 } - 5 x - 7$ accurate to the nearest thousandth.

• A) \(x = - 8.492 , - 0.695,1.186\)
• B) \(x = - 3.575\)
• C) \(x = - 3.910 , - 0.763,1.173\)
• D) \(x = - 4.692\)
• E) \(x = - 4.388 , - 0.720,1.108\)

Understand the negative effects of isolation on families.

Identify false beliefs about seeking help and isolation.

Grasp the challenges community resource agencies face, including funding.

Recognize the various forms of social networks and their importance to families.

---

Definitions:

Reject

In statistics, to refuse the null hypothesis based on evidence from sample data meeting a predetermined significance level.

Interaction Effect

In statistics, the effect that an independent variable has on the outcome variable depends on or varies according to the levels of one or more other independent variables.

F-Ratio

A statistical value used to compare variances in ANOVA tests, determining if there are significant differences between group means.

Research Hypothesis

A proposed explanation or prediction about a relationship that can be tested through study and experimentation.