Determine the Discriminant $$m ( x ) = - 3 x ^ { 2 } + 8 x - 9$$

question 24

Multiple Choice

Determine the discriminant. Then use it to determine the number of x-intercepts that the function has. $$m ( x ) = - 3 x ^ { 2 } + 8 x - 9$$

• A) Discriminant: -44; no x-intercepts
• B) Discriminant: -44; two x-intercepts
• C) Discriminant: -172; no x-intercepts
• D) Discriminant: -172; two x-intercepts

Analyze the impact of changes in independent variables on the dependent variable in a given model.

Understand the significance testing of individual model coefficients using the t-test.

Distinguish between different tests (t-test, F-test, chi-square test) for evaluating regression models.

Interpret regression coefficients in the context of model significance and direction of relationships.

---

Definitions:

Physical Punishment

A form of discipline that involves causing deliberate physical pain or discomfort in response to undesired behavior as a method of correcting, controlling, or changing that behavior.

Cognitive Theorists

Scholars and scientists who study the mental processes involved in acquiring knowledge and understanding, including thought, experience, and the senses.

Injury Control

Strategies and measures implemented to reduce the frequency and severity of injuries.

Perceptual Oversight

The phenomenon where an observer fails to notice something in their visual domain because their attention is focused elsewhere.