Find $\lim _ { x \rightarrow 3 } \frac { x - 3 } { x ^ { 2 } - 9 }$

question 201

Multiple Choice

Find $\lim _ { x \rightarrow 3 } \frac { x - 3 } { x ^ { 2 } - 9 }$ .

• A) \(\frac { 1 } { 6 }\)
• B) \(\frac { 1 } { 3 }\)
• C) \(\frac { 3 } { 2 }\)
• D) \(\frac { 2 } { 3 }\)
• E)limit does not exist

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Definitions:

Dependent Variable

The variable in an experiment or model that is expected to change in response to changes in the independent variable.

Stepwise Regression

A method of fitting regression models in which the choice of predictive variables is carried out by an automatic procedure.

F-statistic

A ratio used in statistical analysis to determine the significance of a group of variables in a regression model.

F-to-enter

A criterion used in statistical analysis to decide when a variable should be added to a regression model based on the F-statistic value.