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) \(- 3,1.7 , - 1.7\)

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Definitions:

Observations

The individual data points or recorded measures of variables collected during a research study or experiment.

Estimated Regression Equation

A mathematical formula predicting the relationship between the dependent variable and one or more independent variables, derived from regression analysis.

SSR

Sum of Squares due to Regression, indicating the proportion of variance in the dependent variable explained by the independent variables in a regression model.

SST

Sum of Squares Total, a measure in statistics that quantifies the total variance within a dataset.